CN206976835U - A kind of sandwich IAC level high-tension switch cabinet bodies - Google Patents
A kind of sandwich IAC level high-tension switch cabinet bodies Download PDFInfo
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- CN206976835U CN206976835U CN201720749743.8U CN201720749743U CN206976835U CN 206976835 U CN206976835 U CN 206976835U CN 201720749743 U CN201720749743 U CN 201720749743U CN 206976835 U CN206976835 U CN 206976835U
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- Prior art keywords
- cabinet
- sandwich
- tension switch
- level high
- switch cabinet
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- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
The utility model discloses a kind of sandwich IAC level high-tension switch cabinet bodies, multiple functional compartments are provided with cabinet, dividing plate in the outer wall and cabinet of cabinet between adjacent functional compartments uses double-deck or multilayer steel plates structure, is provided with the air gap between adjacent layer steel plate, insulated thermal insulating layer is set in the air gap.Insulated thermal insulating layer uses asbestos or mica plate material.Functional compartments include switch gear room, control room, mechanism chamber, pressure releasing chamber, cable vault.Cable vault leads at the gap of the cabinet external space, is designed to labyrinth structure.Pressure relief device is provided with pressure releasing chamber.Cabinet body structure is reliable and stable, heat-barrier material is reliable, cabinet is set to be effectively improved in intensity, it can stablize and effectively bear destruction of the internal fault in mechanical aspects, be restricted to destroying in certain space and degree, defined protect effectively is provided neighbouring human body.
Description
Technical field
It the utility model is related to a kind of high-tension switch cabinet, more particularly to a kind of sandwich IAC level high-tension switch cabinet bodies.
Background technology
High-tension switch cabinet is one of electrical equipment being most widely used in power system, is widely used in industrial and civilian
Hair, distribution system and power supply terminal.For in terms of the protection to personnel near the equipment in normal operation, it is divided into two kinds, one
If there is interior unit cell model when kind is plain edition, i.e. normal work, regulation can not be provided to neighbouring personnel to switch cubicle
Protective capacities；One kind is IAC levels, i.e. internal fault type, it is therefore an objective to is in normal work position in high-tension switch cabinet and control device
Put and when inside arc fault occurs, neighbouring human body can be protected, reach regulation requirement.Safe operation is transmission ＆ distribution electric process all the time
In most important thing, in recent years State Grid Corporation of China of China required in uniform bidding high-tension switch cabinet will by inside fire
Arc is tested, i.e., only IAC levels switch cubicle could participate in submitting a tender.
Conventional Hen Changyige period China does not Qiang Zhiyaoqiu that most products do not reach IAC to the experiment of internal arcing
Level switch cubicle requirement, the switch cubicle designed to reach this requirement are also mostly taken the simple design for strengthening cabinet, used
Thickening switch cubicle steel plate or reinforcement measure is such as used to transformation simple in construction, the tolerance performance to internal fault is unstable,
Also it can not be produced in enormous quantities and be promoted.
Arcing Test to Failure is the examination to personnel protection in the dangerous electric effect of checking inside regulation in IEC62271-200
Test, internal arc directly heats to insulating gas around, hot gas expander, and part energy is by convection current, and with heat energy
Mode heats electric conductor, so as to cause equipment compartment internal pressure to rise, after defined predetermined pressure limit value, and pressure relief device
Startup causes device interior pressure to discharge, hot gas and transient pressure ripple entail dangers to surrounding people and equipment and building.
During interior unit cell model, switchgear and control device are by two serious stress：Mechanical stress and thermal stress.
Mechanical stress can produce considerable damage, due to the rise for the room pressure that failure occurs, cause fixed company in compartment
Fitting such as bolt group, hinge and other fixture under tensions or shearing force and cabinet door and dividing plate and cover plate is stressed deformation
Bending departs from cabinet.
Thermal stress can also produce destruction, when arc fault occurs, electric arc make to close on it is copper wait part melt and gasification and
Thermal stress is produced, and cabinet can be applied to.
Therefore, IAC levels switch cubicle design when, need to mainly consider cabinet structure will internally faulty electric arc when can reach
To regulation requirement of shelter, need to consider internal arc to switch cabinet body in heat, electric power, the several sides of air pressure in structure design
The ability to bear in face, switch cubicle need enough mechanical strength and resistance to ablation ability.
Prior art one, reinforcement measure is such as used using thickening switch cubicle steel plate or to transformation simple in construction.
The shortcomings that prior art one is：
Tolerance performance of this structure to internal fault is unstable, and it is right in terms of intensity to have only taken into account interior unit cell model
The requirement of cabinet, influence of the fuel factor to cabinet is considered it is less, it is limited to the tolerance of interior unit cell model, cost compared with
It is high, it is difficult to which that stable tolerance interior unit cell model, randomness is larger during experiment, neighbouring human body can not be provided when breaking down
Reliable and stable protection.
Prior art two is the design using pressure relief device, and pressure relief device is a kind of pressure relief device, normal work
To needing space to be protected to keep closed state when making, act, beat when the space gas pressure protected reaches to a certain degree
Open walk is discharged the pressure in institute's guard space and heat energy by regulation path.National Specification gas-insulated ring network cabinet
Pressure relief device air chamber of switch cabinet internal pressure reach 3 times of design pressure and on when must act, by internal higher pressure
Power and heat energy are discharged into outside cabinet by regulation path.
The shortcomings that prior art two is：
Pressure relief device is set can not thoroughly to solve caused by powerful mechanical stress and thermal stress caused by internal fault
Destroy, the action of pressure relief device is not moment, is simply acted when pressure reaches to a certain degree, can not be after action immediately
By pressure and heat energy abrupt release, the destruction of mechanical stress and thermal stress is still huge during this period.
Utility model content
The purpose of this utility model is to provide a kind of sandwich IAC level high-tension switch cabinet bodies.
The purpose of this utility model is achieved through the following technical solutions：
Sandwich IAC level high-tension switch cabinet bodies of the present utility model, the cabinet is interior to be provided with multiple functional compartments, the cabinet
Dividing plate in the outer wall and cabinet of body between adjacent functional compartments uses double-deck or multilayer steel plates structure, is provided between adjacent layer steel plate
The air gap, insulated thermal insulating layer is set in the air gap.
The sandwich that the utility model embodiment provides it can be seen from above-mentioned technical scheme provided by the utility model
IAC level high-tension switch cabinet bodies, in structure more rationally, it can stablize and effectively bear destruction of the internal fault in mechanical aspects,
Cabinet body structure is reliable and stable, heat-barrier material is reliable, cabinet is effectively improved in intensity, in structure more rationally, can be steady
It is fixed effectively to bear destruction of the internal fault in mechanical aspects, it is restricted to destroying in certain space and degree, effectively to attached
Near human body protects as defined in providing.
Brief description of the drawings
Fig. 1 a, Fig. 1 b are the side view for the sandwich IAC level high-tension switch cabinet bodies that the utility model embodiment provides with after
Depending on structural representation.
Fig. 2 a, Fig. 2 b, Fig. 2 c are respectively the front of the utility model embodiment sandwich dividing plate, B-B direction, A-A to structure
Schematic diagram.
Fig. 3 a, Fig. 3 b are respectively the mazy structure design signal in the utility model embodiment cable vault and its amplification of I portions
Figure.
In figure：
1st, switch gear room, 2, control room, 3, mechanism chamber, 4, pressure relief device, 5, pressure releasing chamber, 6, cable vault, 7, sandwich dividing plate,
8th, first layer steel plate, 9, the air gap, 10, insulated thermal insulating layer, 11, second layer steel plate, 12, doorframe, 13, door.
Embodiment
With reference to the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out clear
Chu, it is fully described by, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole realities
Apply example.Based on embodiment of the present utility model, those of ordinary skill in the art are obtained under the premise of creative work is not made
The every other embodiment obtained, belongs to the scope of protection of the utility model.
Sandwich IAC level high-tension switch cabinet bodies of the present utility model, its preferable embodiment are：
It is provided with multiple functional compartments in the cabinet, the dividing plate in the outer wall and cabinet of the cabinet between adjacent functional compartments
Using double-deck or multilayer steel plates structure, the air gap is provided between adjacent layer steel plate, insulated thermal insulating layer is set in the air gap.
The insulated thermal insulating layer uses asbestos or mica plate material.
The functional compartments include switch gear room, control room, mechanism chamber, pressure releasing chamber, cable vault.
The cable vault leads at the gap of the cabinet external space, is designed to labyrinth structure.
Pressure relief device is provided with the pressure releasing chamber.
Sandwich IAC level high-tension switch cabinet bodies of the present utility model, in structure more rationally, it can stablize and effectively bear
For internal fault in the destruction of mechanical aspects, cabinet body structure is reliable and stable, heat-barrier material is reliable, cabinet is obtained in intensity effectively
Improve, in structure more rationally, can stablize and effectively bear destruction of the internal fault in mechanical aspects, destruction is restricted to necessarily
Space and degree in, effectively neighbouring human body is provided as defined in protect.
Specific embodiment：
It is divided into hyperbaric chamber and low-pressure chamber inside high-tension switch cabinet because function is unusual, wherein hyperbaric chamber is generally divided into mother
Line room, switch gear room, cable vault etc. are several, and low-pressure chamber typically has mechanism chamber, control room, pressure releasing chamber etc. several, sees accompanying drawing 1.It is internal
Arc fault refers to occurring the major loop in high-voltage switch gear over the ground with alternate short trouble, therefore only occurs in hyperbaric chamber
Portion, internal fault experiment are also only carried out in hyperbaric chamber, therefore main it is envisaged that the internal fault protection in hyperbaric chamber.
Accompanying drawing 1 is the structural representation of high-tension switch cabinet, it is shown that the structure design of multi-compartment, it is indicated that hereafter address
One of typical diaphragm position.
In the technical program, for internal arcing test it is most destructive, equipment and personal security are influenceed it is maximum
Two big factor of mechanical stress and thermal stress, a kind of safe and reliable, rational in infrastructure, performance of design is implemented by following measures
Excellent high-tension switch cabinet body：
Using primary structure of the structure hollow between double-deck or multilayer steel plates, steel plate as cabinet, mechanical stress protection energy
Power is strong
For effectively mechanical shock of the internal arcing failure of protection to cabinet, by the compartment for needing to protect in cabinet (switch gear room,
Cable vault etc.) dividing plate be designed to double-deck or multilayer steel plates structure as needed, the air for having certain distance between every layer of steel plate
Gap, concrete structure are shown in accompanying drawing 2a, Fig. 2 b, Fig. 2 c.When experiment shows same steel plate weight, double-deck or multilayer steel plates are to machinery
Impact has stronger tolerance, is resistant to stronger mechanical shock, the gap after being destroyed at one layer by mechanical shock between steel plate is set
Meter can the effectively direct destruction of cushion mechanical shocks and fuel factor to structure.
Designed using sandwich type structural, setting thermal insulation board, thermal stress protective capacities is strong
For caused fuel factor in internal fault to structural damage, thermal insulation board is set in the gap of multilayer steel plates,
Using the heat-isolating flame retardant material such as material such as asbestos, micarex of excellent performance, after internally failure destroys first layer dividing plate,
Amount of residual heat is obstructed and absorbed by first layer dividing plate and the anti-flaming thermal-insulation plate of second layer partition room, avoids the direct conduction way of heat
Footpath, destruction of the heat energy to outer layer plate is effectively prevented, protect the structure of cabinet not destroyed further.
Accompanying drawing 2a, Fig. 2 b, Fig. 2 c are multilayer insulating panel and the diaphragm structure design diagram of middle folder thermal insulation layer design.
The air flow path of labyrinth type design
Once there is interior unit cell model in the spaces such as cable vault, and electric arc produces the gas and solid of rapid circumference
High temperature and high pressure gas, these gases by rapid expansion and before pressure release chamber opening or impact early stage for opening cabinet and along gap
Toward casing external diffusion, wherein hot gas, Mars, the solid fragment of wrapping up in band can produce destruction to equipment and personnel.
The cabinet of this programme leads to cable vault at the gap of the cabinet external space, is designed to labyrinth structure.See accompanying drawing 3a, figure
3b, when internal fault occurs in cable vault, the guiding of dividing plate that high temperature and high pressure gas are bent, a part along dividing plate bending structure to
Tiltedly lower impact can not be directly impinging on door, reduce direct impact on the door, and fraction rushes in door and each partition room gap,
It can only escape outside cabinet along shown by arrow path under the labyrinth structure limitation of door, dividing plate, doorframe, be reduced step by step during effusion
Direct impact and destruction to parts such as dividing plate, doors, buffered and lay down most impulsive forces, the gas for going out cabinet is broken
Bad power is greatly reduced or even disappeared, while has prevented the phenomenon that internal fragmentation is gone out outside cabinet along gap, the reliable and stable protection of energy
Neighbouring human body preserves from.
Accompanying drawing 3a, Fig. 3 b are respectively the maze-type structure design signal sectional drawing and its partial enlarged drawing of cable vault.
Using pressure relief device
Although pressure relief device can not thoroughly solve the considerable damage of mechanical stress caused by internal fault and thermal stress, but still
It is a kind of effective safeguard procedures, can plays a role to a certain extent, therefore this programme continues using meeting national mark
Accurate pressure relief device is as a kind of safeguard procedures of internal fault.
Technical solutions of the utility model have the beneficial effect that for what product was brought：
Hollow bilayer and multi-layer structure design, intensity is high, and mechanical stress protective capacities is strong；
Sandwich designs, the heat-insulating flame-retardant layer of design, protects the thermal stress and combustive destruction of internal fault, thermal stress protection
By force；
Maze-type structure designs, and reduces the direct impact to cabinet, effectively prevents high temperature and high pressure gas and failure fragment straight
Connect and release outside cabinet, ensure that equipment and personal safety.
It is described above, the only preferable embodiment of the utility model, but the scope of protection of the utility model is not
This is confined to, any one skilled in the art can readily occur in the technical scope that the utility model discloses
Change or replacement, should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should
It is defined by the protection domain of claims.
Claims (5)
1. a kind of sandwich IAC level high-tension switch cabinet bodies, the cabinet is interior to be provided with multiple functional compartments, it is characterised in that described
Dividing plate in the outer wall and cabinet of cabinet between adjacent functional compartments uses double-deck or multilayer steel plates structure, is set between adjacent layer steel plate
There is the air gap, insulated thermal insulating layer is set in the air gap.
2. sandwich IAC level high-tension switch cabinet bodies according to claim 1, it is characterised in that the insulated thermal insulating layer
Using asbestos or mica plate material.
3. sandwich IAC level high-tension switch cabinet bodies according to claim 2, it is characterised in that the functional compartments include
Switch gear room, control room, mechanism chamber, pressure releasing chamber, cable vault.
4. sandwich IAC level high-tension switch cabinet bodies according to claim 3, it is characterised in that the cable vault leads to
At the gap of the cabinet external space, labyrinth structure is designed to.
5. sandwich IAC level high-tension switch cabinet bodies according to claim 3, it is characterised in that set in the pressure releasing chamber
There is pressure relief device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720749743.8U CN206976835U (en) | 2017-06-26 | 2017-06-26 | A kind of sandwich IAC level high-tension switch cabinet bodies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720749743.8U CN206976835U (en) | 2017-06-26 | 2017-06-26 | A kind of sandwich IAC level high-tension switch cabinet bodies |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206976835U true CN206976835U (en) | 2018-02-06 |
Family
ID=61409177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720749743.8U Active CN206976835U (en) | 2017-06-26 | 2017-06-26 | A kind of sandwich IAC level high-tension switch cabinet bodies |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206976835U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113300265A (en) * | 2021-04-27 | 2021-08-24 | 湖北省电力装备有限公司 | SF6 anti-flaming arc looped network cabinet |
| CN114008240A (en) * | 2019-04-25 | 2022-02-01 | Beneq有限公司 | Precursor supply chamber |
-
2017
- 2017-06-26 CN CN201720749743.8U patent/CN206976835U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114008240A (en) * | 2019-04-25 | 2022-02-01 | Beneq有限公司 | Precursor supply chamber |
| CN113300265A (en) * | 2021-04-27 | 2021-08-24 | 湖北省电力装备有限公司 | SF6 anti-flaming arc looped network cabinet |
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