CN110197996A - A kind of pressure relief device applied to switchgear - Google Patents
A kind of pressure relief device applied to switchgear Download PDFInfo
- Publication number
- CN110197996A CN110197996A CN201910574253.2A CN201910574253A CN110197996A CN 110197996 A CN110197996 A CN 110197996A CN 201910574253 A CN201910574253 A CN 201910574253A CN 110197996 A CN110197996 A CN 110197996A
- Authority
- CN
- China
- Prior art keywords
- center
- switchgear
- pressure relief
- relief device
- tube wall
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/025—Safety arrangements, e.g. in case of excessive pressure or fire due to electrical defect
Abstract
The invention discloses a kind of pressure relief devices applied to switchgear, including reset Buffer Unit and closure assemblies；The Buffer Unit that resets includes the outer barrel being vertically arranged and is interspersed in inside the outer barrel and can occur the opposite inner cylinder slided, and the upper end of the inner cylinder is exposed, and is connected with connector；The closure assemblies include being located in the middle center and the outer zone positioned at the center outer rim, the center is recessed relative to the outer zone, and slope surface is formed in the joining place of the two, it is detachably connected at the center of the center with the connector.The present invention effectively can be evacuated and be drained to the high temperature and high pressure gas in switchgear, play the role of quickly, timely pressure-relief explosion-proof, have excellent safety.
Description
Technical field
The present invention relates to electrical equipment technical field, especially a kind of pressure relief device applied to switchgear.
Background technique
Switchgear is a kind of switchgear suitable for electricity consumption occasion, its main function is sent out in electric system
Electricity, transmission of electricity, distribution and electric energy are opened and closed, controlled and are protected during converting, and power plant, substation, stone are mainly used in
The various different occasions such as oiling work, metallurgical steel rolling, industry light industry textile industry, industrial enterprise and residential quarters, skyscraper.
Switchgear during use, interior unit cell model be circuit caused by various reasons short circuit, be switchgear most
Serious failure, electric arc generates fuel factor and pressure effect, if high temperature and high pressure gas cannot be when extremely short in narrow cabinet body
It is interior to be released effectively, it will cause switchgear and burst, injure personal safety.
Existing pressure relief device is that cover board is arranged at the top of switchgear, and one end of cover board is connected by a hinge in switchgear
On, the other end is fixed by nylon screw, when short circuit accident occurs in switchgear, interior gas temperature and pressure in switchgear
It increasing, nylon screw melts because of the high-temperature gas in switchgear, and cover board impact is bounced pressure release by the high pressure gas in switchgear,
But this traditional pressure relief device is influenced by the size of the cover plate, often because pressure release passage is smaller, causes high temperature and high pressure gas
It cannot exclude that switchgear is caused to deform in time, or even the danger burst；In addition, this traditional pressure relief device is in nylon spiral shell
In this period that silk melts, the high temperature and high pressure gas in switchgear is further accumulated, when high temperature and high pressure gas accumulation is too fast,
Although imperial screw can occur not melt completely also, switchgear cannot bear the pressure of internal high temperature high pressure gas and occur quick-fried
Fried, even if nylon screw can be completely melt, high temperature and high pressure gas has accumulated a period of time in inside switch cabinet, and pressure is still
So very big, high temperature and high pressure gas can bounce cover board high speed at this time, cover board around hinge high speed rotation, it is easy to make hinge break,
To which cover board flies out, it is easy to accidentally injure staff, there are security risks；In addition, sealing joint strip can not be arranged at cover board frame
Etc close measure, be easier to that dust is made to enter high pressure compartment pollution high voltage electric conductor, influence built-in electrical insulation intensity, increase short circuit
Failure.
Summary of the invention
The purpose of this section is to summarize some aspects of the embodiment of the present invention and briefly introduce some preferable implementations
Example.It may do a little simplified or be omitted to avoid our department is made in this section and the description of the application and the title of the invention
Point, the purpose of abstract of description and denomination of invention it is fuzzy, and this simplification or omit and cannot be used for limiting the scope of the invention.
The problem of in view of above-mentioned and/or existing pressure relief device of switch cabinet, propose the present invention.
Therefore, the one of purpose of the present invention is to provide a kind of pressure relief device applied to switchgear, can be split
The high temperature and high pressure gas closed in cabinet is quickly and efficiently evacuated and is drained.
In order to solve the above technical problems, the invention provides the following technical scheme: a kind of pressure relief device applied to switchgear,
It includes resetting Buffer Unit and closure assemblies；The reset Buffer Unit includes the outer barrel being vertically arranged and is interspersed in institute
The opposite inner cylinder slided is stated inside outer barrel and can occur, the upper end of the inner cylinder is exposed, and is connected with connector；Institute
Stating closure assemblies includes being located in the middle center and the outer zone positioned at the center outer rim, the center relative to
The outer zone is recessed, and forms slope surface in the joining place of the two, can with connector progress at the center of the center
Dismantling connection.
A kind of preferred embodiment as the pressure relief device of the present invention applied to switchgear, in which: the outer barrel packet
First stop collar of outer tube wall and the upper end is included, the internal diameter of first stop collar is less than the internal diameter of the outer tube wall, and described
First through hole is distributed on first stop collar；The inner cylinder include be matched with the first stop collar internal diameter inner tube wall and
The second stop collar positioned at the inner tube wall periphery, the major diameter fit of second stop collar is in the internal diameter of the outer tube wall, institute
It states and forms interlayer space between inner tube wall and the outer tube wall, the upper end of the inner tube wall is pierced by first stop collar and passes through
It is described to be connect with the connector with the center.
A kind of preferred embodiment as the pressure relief device of the present invention applied to switchgear, in which: the reset buffering
Component further includes bottom cover, and the bottom cover includes cover board and the connection ring positioned at the side edge thereof, the medial surface of the connection ring
On be provided with internal screw thread, the external screw thread for being matched with the internal screw thread, the bottom are provided on the lateral surface of the outer tube wall lower end
Lid is by the mating connection of screw thread in the lower end of the outer tube wall；It is distributed on the cover board and is communicated to the of the interlayer space
Two through-holes.
A kind of preferred embodiment as the pressure relief device of the present invention applied to switchgear, in which: the inner cylinder
Inside has downwardly open second channel, has the guiding being inserted upwardly into inside the second channel at the center of the bottom cover
Cylinder, the third channel that the inside of the guide cylinder has both ends penetrating；The second channel is internally provided with ball sealer, described
Ball sealer is located at the top of the guide cylinder, and the outer diameter of the ball sealer is greater than the internal diameter of the third channel.
A kind of preferred embodiment as the pressure relief device of the present invention applied to switchgear, in which: the guide cylinder
Vertical throttling channel is provided on inner sidewall.
A kind of preferred embodiment as the pressure relief device of the present invention applied to switchgear, in which: the reset buffering
Component further includes return unit, and the return unit is placed on the periphery of the inner tube wall, and the upper end is against the bottom of first stop collar
Face, lower end are against the top surface of second stop collar.
A kind of preferred embodiment as the pressure relief device of the present invention applied to switchgear, in which: the reset buffering
Component further includes being placed on closure ring inner tube wall periphery and be located at below second stop collar；The upper surface of the cover board
With the annular groove for being matched with the closure ring, and each second through-hole is respectively positioned on the lower section of the annular groove, and in communication；
Throttle orifice is additionally provided on the cover board.
A kind of preferred embodiment as the pressure relief device of the present invention applied to switchgear, in which: the connector packet
It includes column and is fixed on the movable balls of the column lower end, the upper end of the inner tube wall blocks, and in the upper surface of the upper end
Recessed to have the ball-and-socket for being matched with the movable balls, the movable balls are embedded in the ball-and-socket, are formed and are flexibly connected；The column it is upper
End is detachably connected at the center of the center by screw.
A kind of preferred embodiment as the pressure relief device of the present invention applied to switchgear, in which: further include linking group
Part, the cohesive component include connector loop and the connecting rod for being fixed on the connector loop lower part；The reset Buffer Unit position
At the connector loop center, and it is located at the underface of the center, the edge for resetting Buffer Unit passes through connecting rod
It is connect with the connector loop.
A kind of preferred embodiment as the pressure relief device of the present invention applied to switchgear, in which: the connector loop
Internal diameter is matched with the center, and the center is embedded in the connector loop, and the outer zone is fitted in the connector loop
Upper surface.
Beneficial effects of the present invention: the present invention effectively can be evacuated and be arranged to the high temperature and high pressure gas in switchgear
Let out, play the role of quickly, timely pressure-relief explosion-proof, have excellent safety.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Attached drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill of field, without any creative labor, it can also be obtained according to these attached drawings other
Attached drawing.Wherein:
Fig. 1 is that the pressure relief device applied to switchgear is mounted on the schematic diagram at the top of switchgear.
Fig. 2 is the chart at the bottom of of the pressure relief device applied to switchgear.
Fig. 3 is the internal structure chart and its fragmentary detail view of the pressure relief device applied to switchgear.
Fig. 4 is the chart at the bottom of and its fragmentary detail view for resetting Buffer Unit.
Fig. 5 is the explosive view and its fragmentary detail view for resetting Buffer Unit.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, right with reference to the accompanying drawings of the specification
A specific embodiment of the invention is described in detail.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, but the present invention can be with
Implemented using other than the one described here other way, those skilled in the art can be without prejudice to intension of the present invention
In the case of do similar popularization, therefore the present invention is not limited by the specific embodiments disclosed below.
Secondly, " one embodiment " or " embodiment " referred to herein, which refers to, may be included at least one realization side of the invention
A particular feature, structure, or characteristic in formula." in one embodiment " that different places occur in the present specification not refers both to
The same embodiment, nor the individual or selective embodiment mutually exclusive with other embodiments.
It referring to Fig.1~5, is one embodiment of the present of invention, this embodiment offers a kind of pressure releases applied to switchgear
Device can be mounted on the top of switchgear, and the high temperature that can effectively, in the quick drain interior of the cabinet short time generate is high
It calms the anger body.
The pressure relief device applied to switchgear includes resetting Buffer Unit 100 and closure assemblies 200.Switchgear
Top needs to open up a penetrating mounting hole, resets the underface that Buffer Unit 100 can be fixed on mounting hole；Closure assemblies
200 are located at the top for resetting Buffer Unit 100, and are sealed on the top of mounting hole, therefore, above and below closure assemblies 200
The pressure release or closing of switchgear can be realized in movement.It resets Buffer Unit 100 to connect with closure assemblies 200, to open capping
Component 200 has the function of resetting.
Buffer Unit 100 is resetted to include the outer barrel 101 being vertically arranged and be interspersed in 101 inside of outer barrel and can send out
The inner cylinder 102 of raw opposite sliding, the upper end of inner cylinder 102 is exposed, and is connected with connector 103.
Closure assemblies 200 include being located in the middle center 201 and the outer zone 202 positioned at 201 outer rim of center.In
Heart district 201 is the panel of border circular areas, and outer zone 202 is the outer ring of border circular areas, and center 201 is relative under outer zone 202
It is recessed, and slope surface is formed in the joining place of the two, the slope surface is convenient for the guiding role in pressure release exhaust process, so that in switchgear
Gas can be discharged more easily along slope surface.It is detachably connected at the center of center 201 with connector 103,
The inner cylinder 102 moved downward can be pulled downwards open closure assemblies 200 by connector 103, realized and resetted and seal
It closes.
In another embodiment, the pressure relief device applied to switchgear further includes cohesive component 300, linking group
Detachable installation of the part 300 convenient for reset Buffer Unit 100 on switchgear, additionally it is possible to convenient for cooperation closure assemblies 200 1
With realization pressure release or closed process.
Specifically, needing to open up a penetrating mounting hole at the top of switchgear, cohesive component 300 is fixed on mounting hole
It is interior, it resets Buffer Unit 100 and is fixed at the center of cohesive component 300, and closure assemblies 200 are shelved on cohesive component 300
Top.Cohesive component 300 includes cricoid connector loop 301 and more connecting rods 302 for being fixed on 301 lower part of connector loop, rank
The outer rim for connecing ring 301 such as can be bolted or be threadedly coupled at the peace that modes are removably fixed on switchgear
It fills on hole.Several connecting rods 302 along reset Buffer Unit 100 circumferential direction be uniformly distributed, and the upper end of each connecting rod 302 with
The bottom of connector loop 301 is fixed, and lower end and the lateral wall of outer barrel 101 are fixed, the inner ring and reset Buffer Unit of connector loop 301
" exhaust space " that can be divulged information is formed between 100.201 major diameter fit of center of closure assemblies 200 is in connector loop 301
Diameter, insertion connector loop 301 is interior downwards and is placed exactly in the surface for resetting Buffer Unit 100 for center 201, center 201
Bottom is connect by connector 103 with the top of inner cylinder 102, and outer zone 202 is shelved on the upper surface of connector loop 301, and
It mutually fits under the pulling force effect for resetting Buffer Unit 100, forms sealing, prevent dust from entering.It is high when being generated in switchgear
After warm high pressure gas, center 201 can be impacted and be opened, realizes pressure-relief explosion-proof, after the completion of pressure release, resets Buffer Unit 100
Center 201 is pulled to reset.
Further, the outer rim of connector loop 301 has the annular folded plate bent downward, has external screw thread on lateral wall.
Meanwhile also there is the annular folded plate bent downward on the edge of switchgear installing port, have be matched with externally threaded interior spiral shell thereon
The outer rim of line, connector loop 301 is fixed in installing port by being threadedly engaged, and formation is detachably connected, therefore can be convenient for device
The installation of entirety is removed for repair or replacement.
Further, the present invention is not only able to guarantee opening for closure assemblies 200 by the setting of reset Buffer Unit 100
It opens that process is unaffected, be rapidly completed (to adapt to the sharply expansion of air pressure, reducing risk), while can also ensure that closure assemblies
200 slowly complete in reseting procedure, the risk for preventing the electric arc high frequency in the short time, frequently generating, therefore increase capping
The opening time of component 200, the period for increasing pressure release, more safety.
Outer barrel 101 includes the first stop collar 101b of outer tube wall 101a and the upper end, and outer tube wall 101a is tubular, and interior
Portion has accommodating space.First stop collar 101b is the ring structure of 101 upper end of outer barrel, and the internal diameter of inner ring is less than outer tube wall
The internal diameter of 101a, and it is circumferentially distributed in the ring segment of the first stop collar 101b have multiple vertical first through hole 101b-1, first
Through-hole 101b-1 is connected to the accommodating space in outer tube wall 101a with exterior space formation.
Inner cylinder 102 includes being matched with the inner tube wall 102a of the first stop collar 101b internal diameter and being located at outside inner tube wall 102a
Second stop collar 102b of the loop enclosed.Wherein, the major diameter fit of the second stop collar 102b is in the internal diameter of outer tube wall 101a,
Fitting is formed, and opposite slide can occur.Interlayer space K, first through hole are formed between inner tube wall 102a and outer tube wall 101a
101b-1 is connected to interlayer space K.The upper end of inner tube wall 102a blocks, and the upper end be pierced by the first stop collar 101b and by with
Connector 103 is connect with center 201.
Further, resetting Buffer Unit 100 further includes the bottom cover 104 being arranged on 101 bottom of outer barrel.Bottom cover 104
Connection ring 104b including horizontal circular cover 104a and positioned at the edge cover board 104a is arranged on the medial surface of connection ring 104b
There is internal screw thread 104b-1, the external screw thread 101a- for being matched with internal screw thread 104b-1 is provided on the lateral surface of the lower end outer tube wall 101a
1, bottom cover 104 is by the mating connection of screw thread in the lower end of outer tube wall 101a.In addition, being uniformly distributed circumferentially on cover board 104a
It is communicated to multiple second through-hole 104a-1 of interlayer space K.Second through-hole 104a-1 is vertical through-hole, can be connected to interlayer space
K and exterior space.
The setting of first through hole 101b-1 and the second through-hole 104a-1 can guarantee inner cylinder 102 relative to outer barrel 101
Sliding stroke without air pressure hinder.
Further, the inside of inner cylinder 102 has downwardly open second channel 102c, has at the center of bottom cover 104
Having the guide cylinder 104c that can be inserted upwardly into inside second channel 102c, guide cylinder 104c is hollow sleeve tubular structure, outer diameter
It is matched with the internal diameter of second channel 102c, and opposite slide up and down can occur in second channel 102c.
The third channel 104c-1 that the inside of guide cylinder 104c has upper and lower ends penetrating.Meanwhile second channel 102c
Inside be additionally provided with can movable ball sealer 105, ball sealer 105 is located at the top of guide cylinder 104c and 102 top of inner cylinder
Between position zone (being defined as " active chamber ").It is to be noted that ball sealer 105 is sphere, outer diameter is less than inner cylinder
102 internal diameter, greater than the internal diameter of third channel 104c-1, therefore, ball sealer 105 can just be shelved on lead in its natural state
To the top of cylinder 104c, the upper end of third channel 104c-1 is formed and is blocked.In addition, being provided on the inner sidewall of guide cylinder 104c
Vertical throttling channel 104c-2, throttling channel 104c-2 are the vertical slots that can be connected to " active chamber " with exterior space,
Its groove depth and cross section are smaller, and exterior space in communication is emitted into the gas slowly that can allow in " active chamber ".
Further, resetting Buffer Unit 100 further includes return unit 106, and return unit 106 uses compressed spring.Return unit
106 are placed on the periphery of inner tube wall 102a, and the upper end is against the bottom surface of the first stop collar 101b, and lower end is against the second stop collar 102b
Top surface, downward reset response power can be directly generated to inner cylinder 102, namely indirectly to closure assemblies 200 generate reset
Effect.The present invention can according to need the return unit 106 for presetting required intensity, to change the pressure release early warning threshold in switchgear
Value, that is, gas could resist return unit 106 and push closure assemblies only after air pressure increases to the threshold value in switchgear
200 move.
Further, resetting Buffer Unit 100 further includes being placed on the periphery inner tube wall 102a and being located at the second stop collar 102b
Therefore the closure ring 107 of lower section blocks ring 107 and is located in interlayer space K.Preferably, it is round that closure ring 107, which is cross section,
Ring structure.The upper surface of cover board 104a has the annular groove 104a-2 for being matched with and blocking ring 107, the cross of annular groove 104a-2
Section is to be matched with the circular arc for blocking ring 107.Preferably, all second through-hole 104a-1 on cover board 104a are circumferentially distributed,
And it is respectively positioned on the lower section of annular groove 104a-2, and in communication.Therefore, when blocking in the insertion of ring 107 annular groove 104a-2, energy
It is enough just to block the second whole through-hole 104a-1.In addition, being additionally provided with throttle orifice 104a-3, throttle orifice on cover board 104a
104a-3 is the vertical through-hole that can be connected to interlayer space K with exterior space, and aperture is smaller, into can allow for interlayer
Gas slowly in the K of space is emitted into exterior space in communication.
Further, connector 103 includes column 103a and is fixed on the movable balls 103b of the lower end column 103a and (can be
Integral type), the upper end of inner tube wall 102a blocks, and the upper surface indent of the upper end has the ball-and-socket for being matched with movable balls 103b structure
102a-1, movable balls 103b are embedded in ball-and-socket 102a-1, are formed and are flexibly connected.Preferably, the upper end and center of column 103a
It is detachably connected at 201 center by screw 103c, there is corresponding perforation on center 201, and column 103a
Upper end has corresponding screw hole 103a-1.Buffer Unit 100 is resetted to connect by the activity of movable balls 103b and closure assemblies 200
It connects, so that the upper surface of outer zone 202 and connector loop 301 is able to carry out the subtle adjustment of adaptability when contacting, so that the two
It is bonded even closer identical, raising sealing effect.
Based on above-mentioned, the pressure leak process and principle of the pressure relief device applied to switchgear are as follows:
When generating high temperature and high pressure gas in switchgear, gas is by connector loop 301 and resets between Buffer Unit 100
" exhaust space " impacts the lower surface of center 201, and closure assemblies 200 is pushed to move upwards.The capping group moved upwards
Part 200 drives the upward withdrawing of inner cylinder 102 by column 103a and movable balls 103b, at this point, the air in switchgear can lead to
Third channel 104c-1 impact ball sealer 105 is crossed, is opened, and enter " active chamber ", due to 104c-1 mouthfuls of third channel
Diameter is larger, therefore air-flow can smoothly enter into, and guarantees the upward withdrawing process of inner cylinder 102 quickly, smoothly, namely: capping group
The process that part 200 moves upwards can be favorably accomplished quickly, guarantee the timeliness of pressure release.At the same time, the second limit of rising
Position ring 102b can squeeze the air in superposed interlayer space K, so that the air on the second top stop collar 102b is from the
One through-hole 101b-1 discharge；And the air of exterior space can be impacted by the second through-hole 104a-1 and block ring 107, be disengaged it from
Annular groove 104a-2, and out of, the second through-hole 104a-1 enters the second lower part stop collar 102b interlayer space K.Due to first logical
Hole 101b-1 and the second through-hole 104a-1 are larger relative to the bore of throttle orifice 104a-3, therefore can guarantee the second stop collar
The uphill process of 102b is quickly, smoothly.The extruding that return unit 106 is accompanied by the above process is shunk.
After the completion of pressure release, inner cylinder 102 and closure assemblies 200 are gradually resetted (downwards by the pulling force of return unit 106
Movement), therefore inner cylinder 102 has the trend for extending downwardly into outer barrel 101.At this point, air in " active chamber " will be by
It squeezes, causes 105 tight closure of ball sealer in the upper end of third channel 104c-1, therefore the air in " active chamber " can only be from
It is drained into exterior space in throttling channel 104c-2.Since the cross section throttling channel 104c-2 is smaller, " movable chamber only can allow for
Gas slowly in room " is emitted into exterior space.At the same time, the second stop collar 102b of decline can be squeezed positioned at its underpart
Interlayer space K in air, lead to block ring 107 being closely embedded on annular groove 104a-2, and it is logical to block each second
Hole 104a-1, therefore the air of the second lower part stop collar 102b can only be discharged from throttle orifice 104a-3, due to throttle orifice 104a-3
Aperture is smaller, therefore only gas slowly can allow for discharge.In conclusion the process that inner cylinder 102 moves downward is slow
Process increases the opening time of closure assemblies 200, extends the period of pressure release, so that the decompression function of switchgear has more
Reliability and safety.
Since bottom cover 104 can dismantle opening, and connector 103 and inner cylinder 102 can also be torn open from closure assemblies 200
It unloads down, therefore the present invention with field stripping and can replace the compressed spring of varying strength and change pressure release threshold value of warning.Therefore,
The present invention can flexibly be arranged in pairs or groups use with multiple return units 106 of mating varying strength specification.
It should be noted that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to preferable
Embodiment describes the invention in detail, those skilled in the art should understand that, it can be to technology of the invention
Scheme is modified or replaced equivalently, and without departing from the spirit and scope of the technical solution of the present invention, should all be covered in this hair
In bright scope of the claims.
Claims (10)
1. a kind of pressure relief device applied to switchgear, it is characterised in that: including,
It resets Buffer Unit (100), including the outer barrel (101) being vertically arranged and is interspersed in the outer barrel (101) inside
And the opposite inner cylinder (102) slided can occur, the upper end of the inner cylinder (102) is exposed, and is connected with connector
(103)；And
Closure assemblies (200), including being located in the middle center (201) and being located at the outer ring of the center (201) outer rim
Area (202), the center (201) is recessed relative to the outer zone (202), and forms slope surface, institute in the joining place of the two
It states and is detachably connected at the center of center (201) with the connector (103).
2. being applied to the pressure relief device of switchgear as described in claim 1, it is characterised in that: the outer barrel (101) includes
The internal diameter of outer tube wall (101a) and first stop collar (101b) of the upper end, first stop collar (101b) is less than the outer cylinder
The internal diameter of wall (101a), and first through hole (101b-1) is distributed on first stop collar (101b)；
The inner cylinder (102) includes being matched with the inner tube wall (102a) of the first stop collar (101b) internal diameter and positioned at institute
The second stop collar (102b) of inner tube wall (102a) periphery is stated, the major diameter fit of second stop collar (102b) is in the outer cylinder
The internal diameter of wall (101a) forms interlayer space (K) between the inner tube wall (102a) and the outer tube wall (101a), the inner cylinder
The upper end of wall (102a) is pierced by first stop collar (101b) and by described and the connector (103) and the center
(201) it connects.
3. being applied to the pressure relief device of switchgear as claimed in claim 2, it is characterised in that: the reset Buffer Unit
It (100) further include bottom cover (104), the bottom cover (104) includes cover board (104a) and the company for being located at the edge the cover board (104a)
It connects ring (104b), is provided with internal screw thread (104b-1) on the medial surface of the connection ring (104b), under the outer tube wall (101a)
The external screw thread (101a-1) for being matched with the internal screw thread (104b-1) is provided on the lateral surface at end, the bottom cover (104) passes through
The mating connection of screw thread is in the lower end of the outer tube wall (101a)；
The second through-hole (104a-1) for being communicated to the interlayer space (K) is distributed on the cover board (104a).
4. as claimed in claim 3 be applied to switchgear pressure relief device, it is characterised in that: the inner cylinder (102) it is interior
Portion has downwardly open second channel (102c), has at the center of the bottom cover (104) and is inserted upwardly into the second channel
(102c) internal guide cylinder (104c), the third channel (104c- that the inside of the guide cylinder (104c) has both ends penetrating
1)；
The second channel (102c) is internally provided with ball sealer (105), and the ball sealer (105) is located at the guide cylinder
The top of (104c), and the outer diameter of the ball sealer (105) is greater than the internal diameter of the third channel (104c-1).
5. as claimed in claim 4 be applied to switchgear pressure relief device, it is characterised in that: the guide cylinder (104c) it is interior
Vertical throttling channel (104c-2) is provided on side wall.
6. the pressure relief device applied to switchgear as described in claim 3~5 is any, it is characterised in that: the reset buffering
Component (100) further includes return unit (106), and the return unit (106) is placed on the periphery of the inner tube wall (102a), and the upper end is supported
In the bottom surface of first stop collar (101b), lower end is against the top surface of second stop collar (102b).
7. being applied to the pressure relief device of switchgear as claimed in claim 6, it is characterised in that: the reset Buffer Unit
It (100) further include the closure ring for being placed on the inner tube wall (102a) periphery and being located at below second stop collar (102b)
(107)；
The upper surface of the cover board (104a), which has, is matched with the annular groove (104a-2) for blocking ring (107), and each the
Two through-holes (104a-1) are respectively positioned on the lower section of the annular groove (104a-2), and in communication；
Throttle orifice (104a-3) is additionally provided on the cover board (104a).
8. claim 3~5 or 7 it is any as described in the pressure relief device applied to switchgear, it is characterised in that: the connector
It (103) include column (103a) and the movable balls (103b) for being fixed on the lower end the column (103a), the inner tube wall
The upper end of (102a) blocks, and the upper surface indent of the upper end has the ball-and-socket (102a-1) for being matched with the movable balls (103b),
The movable balls (103b) are embedded in the ball-and-socket (102a-1), are formed and are flexibly connected；
The upper end of the column (103a) is detachably connected at the center of the center (201) by screw (103c)
It connects.
9. being applied to the pressure relief device of switchgear as claimed in claim 8, it is characterised in that: it further include cohesive component (300),
The cohesive component (300) includes connector loop (301) and the connecting rod (302) for being fixed on the connector loop (301) lower part；
The reset Buffer Unit (100) is located at the connector loop (301) center, and is located at the center (201) just
Lower section, the edge for resetting Buffer Unit (100) are connect by connecting rod (302) with the connector loop (301).
10. as claimed in claim 9 be applied to switchgear pressure relief device, it is characterised in that: the connector loop (301) it is interior
Diameter is matched with the center (201), and the center (201) is embedded in the connector loop (301), and the outer zone
(202) it is fitted in the upper surface of the connector loop (301).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910574253.2A CN110197996B (en) | 2019-06-28 | 2019-06-28 | Pressure relief device applied to switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910574253.2A CN110197996B (en) | 2019-06-28 | 2019-06-28 | Pressure relief device applied to switch cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110197996A true CN110197996A (en) | 2019-09-03 |
| CN110197996B CN110197996B (en) | 2020-07-14 |
Family
ID=67755433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910574253.2A Active CN110197996B (en) | 2019-06-28 | 2019-06-28 | Pressure relief device applied to switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110197996B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111817156A (en) * | 2020-06-27 | 2020-10-23 | 合肥伏安科技有限公司 | High-voltage switch cabinet |
| CN111817154A (en) * | 2020-06-27 | 2020-10-23 | 合肥伏安科技有限公司 | Electrical switchgear cabinet |
| CN112867349A (en) * | 2020-12-31 | 2021-05-28 | 南京升平通信设备有限公司 | Network rack convenient to heat dissipation |
| CN116646861A (en) * | 2023-05-26 | 2023-08-25 | 佛山市南海可力液压机械制造有限公司 | Pressure relief type switch cabinet based on shunt guiding internal pressure self-adaption |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102306912A (en) * | 2011-09-07 | 2012-01-04 | 福建省电力有限公司南平电业局 | High voltage switch cabinet with pressure relief device |
| CN102361246A (en) * | 2011-06-03 | 2012-02-22 | 江苏迪康电气有限公司 | Pressure relief port assembly of gas insulated cabinet |
| CN202210644U (en) * | 2011-08-19 | 2012-05-02 | 北京清畅电力技术股份有限公司 | Box type fixed high-voltage switchgear |
| CN102623920A (en) * | 2012-02-29 | 2012-08-01 | 长城电器集团有限公司 | Pressure relief device for low-voltage power distribution cabinet |
| US8952252B2 (en) * | 2010-10-22 | 2015-02-10 | Rockwell Automation Technologies, Inc. | Arc resistant electrical enclosure |
| CN105356323A (en) * | 2015-12-14 | 2016-02-24 | 重庆新大顺电器有限公司 | Pressure release structure of electric switch cabinet |
| CN107939176A (en) * | 2017-11-17 | 2018-04-20 | 国网青海省电力公司 | A kind of lockset and the explosion-proof flame-retardant power distribution cabinet containing the lockset |
-
2019
- 2019-06-28 CN CN201910574253.2A patent/CN110197996B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8952252B2 (en) * | 2010-10-22 | 2015-02-10 | Rockwell Automation Technologies, Inc. | Arc resistant electrical enclosure |
| CN102361246A (en) * | 2011-06-03 | 2012-02-22 | 江苏迪康电气有限公司 | Pressure relief port assembly of gas insulated cabinet |
| CN202210644U (en) * | 2011-08-19 | 2012-05-02 | 北京清畅电力技术股份有限公司 | Box type fixed high-voltage switchgear |
| CN102306912A (en) * | 2011-09-07 | 2012-01-04 | 福建省电力有限公司南平电业局 | High voltage switch cabinet with pressure relief device |
| CN102623920A (en) * | 2012-02-29 | 2012-08-01 | 长城电器集团有限公司 | Pressure relief device for low-voltage power distribution cabinet |
| CN105356323A (en) * | 2015-12-14 | 2016-02-24 | 重庆新大顺电器有限公司 | Pressure release structure of electric switch cabinet |
| CN107939176A (en) * | 2017-11-17 | 2018-04-20 | 国网青海省电力公司 | A kind of lockset and the explosion-proof flame-retardant power distribution cabinet containing the lockset |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111817156A (en) * | 2020-06-27 | 2020-10-23 | 合肥伏安科技有限公司 | High-voltage switch cabinet |
| CN111817154A (en) * | 2020-06-27 | 2020-10-23 | 合肥伏安科技有限公司 | Electrical switchgear cabinet |
| CN111817156B (en) * | 2020-06-27 | 2022-02-15 | 浙江天润电气有限公司 | High-voltage switch cabinet |
| CN112867349A (en) * | 2020-12-31 | 2021-05-28 | 南京升平通信设备有限公司 | Network rack convenient to heat dissipation |
| CN112867349B (en) * | 2020-12-31 | 2022-02-18 | 南京升平通信设备有限公司 | Network rack convenient to heat dissipation |
| CN116646861A (en) * | 2023-05-26 | 2023-08-25 | 佛山市南海可力液压机械制造有限公司 | Pressure relief type switch cabinet based on shunt guiding internal pressure self-adaption |
| CN116646861B (en) * | 2023-05-26 | 2024-01-09 | 广西南亚电器有限公司 | Pressure relief type switch cabinet based on shunt guiding internal pressure self-adaption |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110197996B (en) | 2020-07-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110197996A (en) | A kind of pressure relief device applied to switchgear | |
| CN110265887A (en) | A kind of adjustable switch cabinet pressure relief device | |
| US9080685B2 (en) | Double-switched automatic sprinkler valve | |
| CN112072484A (en) | Power distribution cabinet capable of automatically extinguishing fire by thermal kinetic energy | |
| CN110165583A (en) | A kind of safety-type compression relief cock cabinet | |
| CN208954284U (en) | A kind of substation's energy monitor warning device | |
| CN110165584A (en) | A kind of pressure-relief explosion-proof switchgear | |
| CN106842015B (en) | A kind of sulfur hexafluoride breaker failure simulation device | |
| CN110071431B (en) | Smart power grids switch board | |
| CN206834527U (en) | A kind of intelligent high-pressure power distribution cabinet | |
| CN112003227A (en) | Cable trench with automatic fire extinguishing function for communication base station | |
| CN110260009A (en) | A kind of ventilative pressure relief mechanism | |
| CN213192221U (en) | Automatic fire extinguishing device suitable for small-size switch board | |
| CN211237078U (en) | Intelligent security and protection integrated monitoring system | |
| CN209445327U (en) | A kind of solar street light intelligent power management and control device | |
| CN112524594A (en) | Explosion-proof multifunctional biomass energy boiler | |
| CN208240563U (en) | A kind of high-low pressure vacuum circuit breaker | |
| CN109802488B (en) | Remote intelligent monitoring system of transformer | |
| CN208781717U (en) | New type explosion proof patch type aluminium electrolutic capacitor | |
| CN108512171A (en) | A kind of line of abandoning of distribution line protects lever apparatus | |
| CN205531791U (en) | Explosion -proof locking device of cubical switchboard | |
| CN213782662U (en) | Novel easily overhauls telemechanical box becomes | |
| CN218685843U (en) | Electric power cabinet with dust fire extinguishing structure | |
| CN208620154U (en) | A kind of indicator light being conveniently replaceable | |
| CN219833406U (en) | Switch board convenient to later stage detects maintenance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200619 Address after: 325600, No. seven, No. 292, weft Road, Yueqing Economic Development Zone, Wenzhou, Zhejiang Applicant after: ZHEJIANG WANTAI POWER AUTOMATION TECHNOLOGY Co.,Ltd. Address before: 214161 lakes in Jiangsu province Wuxi City foreshore Hu Dai Zhen Lu Lotus Road No. 3 Applicant before: JIANGSU GEN DE POWER EQUIPMENT Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |