CN209046094U - A kind of ventilation device of fire-resistant arc - Google Patents
A kind of ventilation device of fire-resistant arc Download PDFInfo
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- CN209046094U CN209046094U CN201821972281.7U CN201821972281U CN209046094U CN 209046094 U CN209046094 U CN 209046094U CN 201821972281 U CN201821972281 U CN 201821972281U CN 209046094 U CN209046094 U CN 209046094U
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Abstract
The utility model discloses a kind of ventilation devices of fire-resistant arc, belong to switchgear technical field.The ventilation device of the fire-resistant arc of the utility model includes ventilating system (1) and plate turnover system (2), the ventilating system (1) is circulated for compartment inner air and outer air, the plate turnover system (2) includes movable plate (22) and support member, a side of the movable plate (22) is movably connected with ventilating system (1), opposite another side makes movable plate (22) be maintained at open position by the support member, when arcing occurs for compartment interior, the support member releasing activity plate (22), keep movable plate (22) in the closed position.The ventilation device of fire-resistant arc provided by the utility model, so that compartment usually can gravity-flow ventilation reduction equipment temperature rise；When there is the compartment interior arcing of switchgear, the device can quick closedown, withstand the impact of air-flow and electric arc so that high pressure-temperature air-flow and electric arc are not escaped from the device.
Description
Technical field
The invention belongs to switchgear technical fields, and in particular to a kind of ventilation device of fire-resistant arc.
Background technique
Existing metal enclosed (in, low pressure) switchgear in the process of running, in each function compartment of switchgear due to
The effect of loop resistance and electric current can generate heat.Each function is every room temperature if it exceeds design temperature rise, can give switchgear
Normal operation affect.In order to reduce the temperature of function compartment, gravity-flow ventilation is effective cooling measure.In addition, international
Standard and national Specification each function compartment of switchgear should have the ability of anti-internal arcing.To reach wanting for fire-resistant arc
Ask, generally can reinforcing as far as possible and closedcell, the heat-sinking capability of such compartment it is poor.
It is disclosed application No. is 201721271500.4 Chinese patent application and a kind of meets the logical of arcing and temperature increase requirement
Wind apparatus, the ventilation device are arranged on the door-plate of switchgear, the ventilation device include sand net, integral type baffler, frame, every
Plate, door-plate, on integral type baffler installation frame, frame is mounted on the inner surface of door-plate, partition be fixed on frame and door-plate it
Between, sand net is fixed between integral type baffler and frame, and the integral type baffler includes fixed plate and baffle, baffle connection
In fixed plate, and it is at a certain angle with fixed plate shape, and baffle and fixed plate are integrally formed.Equipment using the device is being sent out
When raw arcing generates, the direct impact baffle plate of the high temperature and high pressure gas of generation is allowed to and fixes plate closing, and it is directionless that there are air-flows
Property, and from the possibility of baffle and fixed plate clearance leakage, moreover, using integral type baffler and tile cover board, to processing
It is higher with installation requirement.
Summary of the invention
It is an object of the present invention to provide a kind of ventilation devices of fire-resistant arc, so that compartment usually can gravity-flow ventilation reduction equipment temperature
It rises；When there is the compartment interior arcing of switchgear, the device can quick closedown, withstand the impact of air-flow and electric arc,
So that high pressure-temperature air-flow and electric arc are not escaped from the device.
Specifically, the present invention adopts the following technical solutions realize:
Including ventilating system and plate turnover system, the ventilating system circulates for compartment inner air and outer air, the plate turnover system
Including movable plate and support member, a side and the ventilating system of the movable plate are movably connected, and opposite another side passes through
The support member makes movable plate be maintained at open position, when arcing occurs for compartment interior, the support member releasing activity
Plate keeps movable plate in the closed position.
Furthermore, the ventilating system includes the ventilating board for being provided with ventilation hole or blind window.
Furthermore, it is additionally provided with protective net on the inside of the ventilating board, is provided with mesh on the protective net.
Furthermore, the movable plate is made of heat-resisting material.
Furthermore, the plate turnover system further includes the frame pedestal being fixed in ventilating system, the movable plate
A side is hinged with pedestal, and the support member is fixed on pedestal.
Furthermore, the support member is spring leaf；One end of the spring leaf is fixed in ventilating system, another
End is free end, and the spring leaf of free end side is abutted against with movable plate in an open position, is in close stance in movable plate
When setting, the free end of spring leaf is pressed on movable plate.
Furthermore, the spring leaf is U-shaped.
Furthermore, the support member is wirerope, and one end of the wirerope is fixed in ventilating system, another
Movable plate is held when movable plate is in an open position in end.
It furthermore, further include air-flow guide housing, the air-flow guide housing is fixed in ventilating system, the turnover panel system
In the enclosure space that system is closed in air-flow guide housing and ventilating system is collectively formed, it is empty that permission is provided on the air-flow guide housing
The logical channel of air-flow.
Furthermore, the channel position on the air-flow guide housing is close to the folding end of movable plate.
Beneficial effects of the present invention are as follows: the ventilation device of fire-resistant arc of the invention, can be used for metal enclosed (in, low pressure)
In the compartment of switchgear, such as cable vault, bus-bar room, switch gear room, can by each function compartment of switchgear due to circuit electricity
The heat that resistance is generated with the function of current is dispersed into outside compartment by the device, to reduce equipment temperature rise, guarantees switchgear
It operates normally；And when arcing occurs for the compartment interior of switchgear, the device can quick closedown, withstand internal arcing and produce
The impact of raw high pressure-temperature air-flow and electric arc, so that high pressure-temperature air-flow and electric arc are not escaped from the device, it is ensured that other
The normal operation and personnel safety of switchgear.
Detailed description of the invention
Fig. 1 is the perspective view of the ventilation device ventilation state of the fire-resistant arc of the embodiment of the present invention 1.
Fig. 2 is the perspective view of the ventilation device fire-resistant arcuation state of the fire-resistant arc of the embodiment of the present invention 1.
Fig. 3 is the perspective view of the ventilation device ventilation state of the fire-resistant arc of the embodiment of the present invention 2.
Fig. 4 is the perspective view of the ventilation device fire-resistant arcuation state of the fire-resistant arc of the embodiment of the present invention 2.
Label in figure: 1- ventilating system, 2- plate turnover system, 3- air-flow guide housing, 11- ventilating board, 12- protective net, 21-
Pedestal, 22- movable plate, 23- spring leaf, 24- wirerope, 25- mounting hole.
Specific embodiment
Below with reference to embodiment and referring to attached drawing, present invention is further described in detail.
Embodiment 1:
One embodiment of the present of invention is a kind of ventilation device of fire-resistant arc.The structure of the ventilation device of fire-resistant arc referring to
FIG. 1 to FIG. 2, in figure, the side A is indicated outside compartment, and the side B indicates compartment interior.The ventilation device of the fire-resistant arc includes ventilating system
1,3 three plate turnover system 2, air-flow guide housing parts are set gradually from compartment outside A to compartment interior B.
Ventilating system 1 consists of two parts, ventilating board 11 and protective net 12.Ventilating board 11 setting calorific value it is biggish every
Outside, is distributed with the ventilation hole being made of multiple apertures thereon, the shape of ventilation hole can be rectangle, circle hole shape, waist-hole type,
Diamond shape, polygon etc..Ventilating board 11 is also possible to the form of blind window.Ventilating board 11 has enough intensity, meets switch and sets
The requirement of standby shell impact resistance.The diameter of mesh meets requirement of each compartment of switchgear to degree of protection on protective net 12.
Plate turnover system 2 is made of pedestal 21, movable plate 22 and spring leaf 23.Pedestal 21 is the flange with turned welt shape, bullet
Reed 23 is fixedly mounted on the flange of pedestal 21.There are two mounting holes 25 on pedestal 21, for movable plate 22 to be installed to bottom
On seat 21.Movable plate 22 is using the plate of lid shape made of heat-resisting material, and there are two state (opening or closing).Spring leaf 23
When movable plate 22 is in the open position, movable plate 22 can be blocked, guarantees that movable plate 22 is in an open state, referring to Fig.1；When every
When arcing occurs for chamber interior, high pressure draught impacts movable plate 22, so that movable plate 22 overcomes the elastic force of spring leaf 23 and quickly closes
It closes, and movable plate 22 can cover ventilating board and protective net completely, prevents the air-flow of arcing generation to compartment External leakage, bullet
Movable plate 22 is pushed down in the end of reed 23, guarantees that movable plate 22 is in close state always, to be better protected from arcing generation
Effect from air-flow to compartment External leakage, referring to Fig. 2.Protective net 12 and pedestal 21 are mounted on ventilation by screw or flange
On plate 11.
Referring to Fig.1, air-flow guide housing 3 is flanged (FLGD) lid shape structure, four sides be it is closed, multiple apertures are opened in lower half.
The shape of air-flow guide housing 3 is corresponding to movable plate 22, and shape is bigger than movable plate 22 and can effectively cover movable plate 22, prevents from firing
The gas that arc generates is to compartment External leakage.Air-flow guide housing 3 is mounted on ventilating board 11 and is covered on by screw or flange
On plate turnover system 2.When movable plate 22 is in an open state, the top of movable plate 22 is connected with pedestal 21, the lower half of movable plate 22
Portion opens, and the open position of aperture and movable plate 22 on air-flow guide housing 3 is adapted.These apertures are usually used to divulge information；?
When arcing occurs for compartment interior, the high pressure draught that compartment interior arcing generates oppresses the lower half of movable plate 22 by these apertures
Point, make its quick closedown.
Fire-resistant arc ventilation device of the invention during installation, blocks movable plate 22 using spring leaf 23, movable plate 22 is protected
Opening state is held, the inside and outside air-flow of compartment is circulation, and the cold airflow outside compartment is able to enter in compartment, every indoor High Temperature Gas
Stream also can be to compartment external diffusion.But when arcing occurs in compartment interior, the high pressure draught that compartment interior arcing generates passes through air-flow
Movable plate 22,22 energy quick closedown of movable plate, to prevent to escape from the present apparatus every indoor air-flow are impacted in hole on guide housing 3
Out.
As needed, one or more mountable devices of each compartment of switchgear, between the device of each compartment installation
Ventilation, heat dissipation can be cooperateed with.
Fire-resistant arc ventilation device with the present embodiment structure is more suitable in compartment side right angle setting or cell bottom water
Safety dress.
By the heat spreading function of this device, each contact point temperature rise of compartment inner looping can be effectively reduced, so that switchgear
It can more safely and effectively work；And when there is internal arcing in compartment, ventilation device energy quick closedown, it is ensured that high pressure-temperature
Air-flow and electric arc protect other equipment and the safety of operator not escape from ventilation device.
Embodiment 2:
Another embodiment of the invention, working principle and implementation 1 are essentially identical, have and embodiment 1 is essentially identical
Ventilating system 1 and air-flow guide housing 3, for keeping movable plate 22 in the open state in different mainly plate turnover systems 2
Structure member.The structure of the ventilation device of fire-resistant arc is referring to Fig. 3 and Fig. 4, and in figure, the side A is indicated outside compartment, the side B indicate every
Chamber interior.
Plate turnover system 2 is made of pedestal 21, movable plate 22 and wirerope 24.Pedestal 21 is the flange with turned welt shape, steel
24 one end of cord is fixed on the flange of pedestal 21, and the other end is fixed on movable plate 22.Mounting hole 25 there are two on pedestal 21,
For movable plate 22 to be installed to pedestal 21.Movable plate 22 is the plate of the lid shape made of metal material, (is beaten there are two state
On or off is closed).To locate in the open mode in movable plate 22 due to gravity, wirerope 24 can hold open movable plate 22,
Guarantee that movable plate 22 is in an open state, referring to Fig. 3；When arcing occurs for compartment interior, high pressure draught impacts movable plate 22, so that
Movable plate 22 overcomes support force and the gravity of itself and the quick closedown of wirerope, referring to Fig. 4.It will be protected by screw or flange
Net 12 and pedestal 21 are mounted on ventilating board 11.
Fire-resistant arc ventilation device of the invention holds movable plate 22 when compartment top horizontal is installed, with wirerope 24, will
Movable plate 22 is kept open, and the inside and outside air-flow of compartment is circulation, and the cold airflow outside compartment is able to enter in compartment, compartment
Interior high temperature gas flow also can be to compartment external diffusion.But when there is arcing in compartment interior, the high pressure gas of compartment interior arcing generation
Stream impacts movable plate 22,22 energy quick closedown of movable plate by the hole on air-flow guide housing 3, and wirerope does not influence the pass of movable plate
It closes, to prevent to escape from the present apparatus every indoor air-flow.
As needed, one or more mountable devices of each compartment of switchgear, between the device of each compartment installation
Ventilation, heat dissipation can be cooperateed with.
Fire-resistant arc ventilation device with the present embodiment structure is more suitable for installing in compartment top horizontal, when only on compartment top
Portion is horizontally mounted when making, and is not had particular/special requirement to the hardness of wirerope, be could alternatively be the rope structure of other soft materials.
By the heat spreading function of this device, each contact point temperature rise of compartment inner looping can be effectively reduced, so that switchgear
It can more safely and effectively work；And when there is internal arcing in compartment, ventilation device energy quick closedown, it is ensured that high pressure-temperature
Air-flow and electric arc protect other equipment and the safety of operator not escape from ventilation device.
Although the present invention has been described by way of example and in terms of the preferred embodiments, embodiment is not for the purpose of limiting the invention.Not
It is detached from the spirit and scope of the present invention, any equivalent change or retouch done also belongs to the protection scope of the present invention.Cause
This protection scope of the present invention should be based on the content defined in the claims of this application.
Claims (10)
1. a kind of ventilation device of fire-resistant arc, which is characterized in that including ventilating system (1) and plate turnover system (2), the ventage
(1) is united for the circulation of compartment inner air and outer air, the plate turnover system (2) includes movable plate (22) and support member, the movable plate
(22) a side is movably connected with ventilating system (1), and opposite another side makes movable plate (22) by the support member
It is maintained at open position, when arcing occurs for compartment interior, the support member releasing activity plate (22) makes at movable plate (22)
In closed position.
2. the ventilation device of fire-resistant arc as described in claim 1, which is characterized in that the ventilating system (1) includes setting thereon
It is equipped with the ventilating board (11) of ventilation hole or blind window.
3. the ventilation device of fire-resistant arc as claimed in claim 2, which is characterized in that also set up on the inside of the ventilating board (11)
Have protective net (12), is provided with mesh on the protective net (12).
4. the ventilation device of fire-resistant arc as described in claim 1, which is characterized in that the movable plate (22) uses high temperature resistant material
Material is made.
5. the ventilation device of fire-resistant arc as described in claim 1, which is characterized in that the plate turnover system (2) further includes fixing
In the frame pedestal (21) on ventilating system (1), a side of the movable plate (22) and pedestal (21) hingedly, the support portion
Part is fixed on pedestal (21).
6. the ventilation device of fire-resistant arc as described in claim 1, which is characterized in that the support member is spring leaf (23)；
One end of the spring leaf (23) is fixed on ventilating system (1), and the other end is free end, and the spring leaf (23) of free end side
It is abutted against with movable plate (22) in an open position, when movable plate (22) is in the closed position, the freedom of spring leaf (23)
Side pressure is on movable plate (22).
7. the ventilation device of fire-resistant arc as claimed in claim 6, which is characterized in that the spring leaf (23) is U-shaped.
8. the ventilation device of fire-resistant arc as described in claim 1, which is characterized in that the support member is wirerope (24),
One end of the wirerope (24) is fixed on ventilating system (1), and the other end is held when movable plate (22) is in an open position
Movable plate (22).
9. the ventilation device of the fire-resistant arc as described in claim 1~8 is any, which is characterized in that further include air-flow guide housing
(3), the air-flow guide housing (3) is fixed on ventilating system (1), the plate turnover system (2) be closed in air-flow guide housing (3) and
In the enclosure space that ventilating system (1) is collectively formed, the channel for allowing air circulation is provided on the air-flow guide housing (3).
10. the ventilation device of fire-resistant arc as claimed in claim 9, which is characterized in that the channel on the air-flow guide housing (3)
It is located proximate to the folding end of movable plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821972281.7U CN209046094U (en) | 2018-11-27 | 2018-11-27 | A kind of ventilation device of fire-resistant arc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821972281.7U CN209046094U (en) | 2018-11-27 | 2018-11-27 | A kind of ventilation device of fire-resistant arc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209046094U true CN209046094U (en) | 2019-06-28 |
Family
ID=67043738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821972281.7U Active CN209046094U (en) | 2018-11-27 | 2018-11-27 | A kind of ventilation device of fire-resistant arc |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209046094U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114630523A (en) * | 2020-12-14 | 2022-06-14 | Abb瑞士股份有限公司 | Device for closing a ventilation opening in a housing of a switching device, and switching device |
-
2018
- 2018-11-27 CN CN201821972281.7U patent/CN209046094U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114630523A (en) * | 2020-12-14 | 2022-06-14 | Abb瑞士股份有限公司 | Device for closing a ventilation opening in a housing of a switching device, and switching device |
| EP4012858A1 (en) * | 2020-12-14 | 2022-06-15 | ABB Schweiz AG | Apparatus for closing a ventilation opening in a housing of a switch gear and a switch gear comprising such an apparatus |
| US11757266B2 (en) | 2020-12-14 | 2023-09-12 | Abb Schweiz Ag | Apparatus for closing a ventilation opening in a housing of a switch gear and a switch gear comprising such an apparatus |
| CN114630523B (en) * | 2020-12-14 | 2024-02-13 | Abb瑞士股份有限公司 | Device for closing a ventilation opening in a housing of a switching device, and switching device |
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