CN205960484U - Heat transfer system of gas insulation switch cabinet, cubical switchboard gas tank and gas tank - Google Patents
Heat transfer system of gas insulation switch cabinet, cubical switchboard gas tank and gas tank Download PDFInfo
- Publication number
- CN205960484U CN205960484U CN201620867004.4U CN201620867004U CN205960484U CN 205960484 U CN205960484 U CN 205960484U CN 201620867004 U CN201620867004 U CN 201620867004U CN 205960484 U CN205960484 U CN 205960484U
- Authority
- CN
- China
- Prior art keywords
- heat
- heat pipe
- gas tank
- sealing plate
- cold
- 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.)
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- 238000009413 insulation Methods 0.000 title claims abstract description 29
- 238000010521 absorption reaction Methods 0.000 claims abstract description 3
- 238000007789 sealing Methods 0.000 claims description 64
- 230000000875 corresponding Effects 0.000 abstract description 4
- 239000006096 absorbing agent Substances 0.000 abstract 2
- 239000004411 aluminium Substances 0.000 description 10
- 229910052782 aluminium Inorganic materials 0.000 description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound 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Abstract
The utility model provides a heat transfer system of gas insulation switch cabinet, cubical switchboard gas tank and gas tank. The cubical switchboard gas tank includes the heat pipe, the one end of heat pipe is used for absorbing the heat and forms the hot junction, and the heat pipe hot junction is equipped with the heat absorber, and this heat absorber is close to and nevertheless keeps corresponding insulation distance with electric elements to the heat of furthest's absorption electric elements production, the heat pipe other end is fixed on one side of closing plate with heat transfer to the closing plate on and form the cold junction, the opposite side of closing plate is equipped with heat abstractor, heat pipe cold junction and heat abstractor correspond the setting and are in the both sides of closing plate, the gas tank is still including being used for fixing the fixed knot of heat pipe cold junction position constructs. The utility model discloses an it is outside that gas insulation switch cabinet and gas tank and heat transfer system can transmit the heat that electric elements produced to the box fast.
Description
Technical field
The utility model is related to the heat transfer system of a kind of gas insulation switch cabinet, switch cabinet air box and gas tank.
Background technology
Compared with air insulation switch cubicle, gas insulation switch cabinet has that floor space is little, insulating properties good, sealing
Can good, reliability is high, non-maintaining, affected by environment the advantages of, be gradually easily accepted by a user in recent years.But with respect to equal
The air insulation switch cubicle of level, gas insulation switch cabinet is sealed in the heat in airtight gas tank, in gas tank because of its major loop
Can only be dispersed in gas tank extraneous air by gas tank wall, this radiating mode compares the straight of air insulation switch cubicle heater element
For connecing Natural Heat Convection mode, its radiating effect differs greatly.Cause in gas insulation switch cabinet gas tank and once lead back
Circuit component temperature rise is easy to exceeded, too high temperature rise and can accelerate the aging of gas tank interior insulation material and then reduce insulating properties, shadow
Ring reliability and the security of switchgear.The heat therefore how internal for gas insulation switch cabinet gas tank primary circuit being produced
Efficiently and rapidly being delivered to outside gas tank is one of difficult problem of current gas insulation switch cabinet technical field.
For above-mentioned heat dissipation problem, similar products at home and abroad typically installs radiating additional using in gas tank wall inner face and outside simultaneously
The scheme of device being radiated, but because gas tank inner space limits, its size-constrained of the radiating that inner face installs additional, can not be fast
Speed effectively absorbs the heat of electrical equipment in gas tank, and this heat sink conception has that radiating efficiency is low, and total quality is laid particular stress on etc. lacks
Point.
Utility model content
The purpose of this utility model is to provide the heat transfer system of a kind of gas insulation switch cabinet, switch cabinet air box and gas tank
System, the heat that electrical equipment is produced is rapidly transferred to outside casing.
For achieving the above object, the technical scheme of the heat transfer system of the utility model gas tank is：A kind of heat transfer system of gas tank
System, including the sealing plate for sealing gas tank pilot hole, the heat transfer system of described gas tank also includes at least one heat pipe, described heat
One end of pipe is used for absorbing heat and forms hot junction, heat pipe hot junction be provided near but do not contact electrical equipment to absorb electrically
The heat dump of the heat that element produces, the heat pipe other end is fixed on the side of described sealing plate to transfer heat to sealing plate
Above form cold end, the opposite side of described sealing plate is provided with heat abstractor, and described heat pipe cold end and heat abstractor are correspondingly arranged at
The both sides of described sealing plate, the heat transfer system of described gas tank also includes the fixed structure for fixing described heat pipe cold end position.
The technical scheme of the utility model switch cabinet air box is：A kind of switch cabinet air box, including the electricity in casing and casing
Gas element, described casing is provided with the sealing plate for sealing gas tank pilot hole, is provided with least one heat pipe, institute in described casing
The one end stating heat pipe is used for absorbing heat and forms hot junction, heat pipe hot junction be provided near but do not contact electrical equipment to absorb
The heat dump of the heat that electrical equipment produces, the heat pipe other end is fixed on close to transfer heat on the inner side of described sealing plate
Cold end is formed on shrouding, the opposite side of described sealing plate is provided with heat abstractor, described heat pipe cold end is corresponding with heat abstractor
It is arranged on the both sides of described sealing plate, in described casing, be additionally provided with the fixed structure for fixing described heat pipe cold end position.
The technical scheme of the utility model gas insulation switch cabinet is：A kind of gas insulation switch cabinet, including switch cubicle gas
Case, described casing is provided with the sealing plate for sealing gas tank pilot hole, is provided with least one heat pipe, described heat in described casing
One end of pipe is used for absorbing heat and forms hot junction, heat pipe hot junction be provided near but do not contact electrical equipment to absorb electrically
The heat dump of the heat that element produces, the heat pipe other end is fixed on the inner side of described sealing plate to transfer heat to sealing plate
Above form cold end, described heat pipe hot junction is provided with heat dump, and the opposite side of described sealing plate is provided with heat abstractor, described heat pipe
Cold end and heat abstractor are correspondingly arranged at the both sides of described sealing plate, are additionally provided with for fixing described heat pipe cold end in described casing
The fixed structure of position.
The beneficial effects of the utility model are：During use, the heat dump in heat pipe hot junction is placed near electrical equipment,
Close proximity to electrical equipment on the premise of guarantee insulation distance, the cold end of heat pipe is arranged on sealing plate side, the heat of heat pipe
At end, the heat dump of setting can absorb the heat of electrical equipment generation, transfers heat to the cold of heat pipe by medium in pipe
End, heat pipe cold end transfers heat to sealing plate, the heat rapidly being produced electrical equipment using the high thermal conductivity of heat pipe
Reach on sealing plate, the heat abstractor of sealing plate opposite side is used for discharging the heat on sealing plate.Heat pipe cold end and heat abstractor
It is correspondingly arranged at the both sides of sealing plate, is to ensure that heat flow path is the shortest, heat transfer efficiency maximizes.Heat transfer of the present utility model
The heat that system avoids electrical equipment generation can not be discharged in time and be led to electrical equipment failure of insulation, impact switch
The security of cabinet.Whole heat transfer unit (HTU) is carried out all in gas tank, carries out heat conduction by sealing plate it is ensured that gas insulation switch cabinet
The sealing property of gas tank.
Brief description
Fig. 1 is the schematic diagram of heat pipe in the heat transfer system embodiment of the utility model gas tank；
Fig. 2 is the schematic diagram of the heat transfer system embodiment of the utility model gas tank；
Fig. 3 is the top view of Fig. 2.
Specific embodiment
Below in conjunction with the accompanying drawings embodiment of the present utility model is described further.
The specific embodiment of the heat transfer system of gas tank of the present utility model, as shown in Figure 1 to Figure 3, wherein, 1 is heat pipe, 2
For heat dump, 3 is fixed block, and 4 is sealing aluminium sheet, and 5 is radiator.
The left end of diagram heat pipe 1 is the hot junction of heat pipe, and hot junction is provided with heat dump 2, and the other end is the cold end of heat pipe.Use
When, on the premise of meeting insulation distance, electrical equipment as far as possible in gas insulation switch cabinet gas tank for the heat dump 2,
Enable the heat absorption that electrical equipment is quickly produced by heat dump 2, as few as possible being discharged into of heat of electrical equipment release
In gas tank.Multiple heat transfer sheets are provided with heat dump 2, when heat transfer sheet is installed, the position of adjustment heat transfer sheet, make the placement of heat transfer sheet
Nearby air current flow direction is consistent with electrical equipment in direction, makes heat dump 2 absorb heat more efficiently from neighbouring high-temperature gas
Amount.Heat dump 2 can be connected for interference fit with the connected mode in the hot junction of heat pipe 1 or using pressing plate and solid with structures such as screws
Fixed connection.The other end of heat pipe 1 is connected with fixed block 3, and heat pipe 1 can be connected for interference fit with the connected mode of fixed block 3
Or using pressing plate, heat pipe 1 is fixed on fixed block 3, the connected mode such as fixed block 3 is connected by screw is fixed on sealing aluminium sheet 4
On.As can be seen from Figure, the cold end of heat pipe 1 is higher than hot junction, can make heat-conducting medium in heat pipe when using after condensation
Quickly return to hot junction.During use, the shape of heat pipe cold end, cold end are entered according to actual conditions with the contact area sealing aluminium sheet 4
Row adjustment, such as by the bending upwards of heat pipe cold end, makes heat pipe cold end and the contact area of sealing aluminium sheet 4 increase to improve heat transfer effect
Rate.
In the present embodiment, the left side of sealing aluminium sheet 4 is inside gas tank, and right side is outside gas tank.Outside sealing aluminium sheet 4
Side is provided with radiator 5 on position corresponding with the cold end of heat pipe 1, and the position of radiator 5 is corresponding with the cold end of heat pipe 1, to protect
The transmission path of card hot-fluid is the shortest, and heat transfer efficiency maximizes.Multiple radiating fins are provided with radiator 5, radiating fin is vertical
Place, improve the heat exchanger effectiveness of radiator and air.
Sealing aluminium sheet 4 to the pilot hole of gas tank unit seals with the sealing property it is ensured that gas tank, sealing aluminium sheet 4 is
For sealing plate, in other embodiments, the material of sealing plate can be other materials, when choosing material, selects heat transfer efficiency
High material.Fixed block 4 is fixed structure, and radiator 5 is heat abstractor, and heat abstractor includes multiple radiating fins, dissipates
Hot fin is vertically placed, it is possible to increase the rate of heat exchange of heat abstractor and air.
Heat pipe is made up of shell, liquid-sucking core and end cap, and inside heat pipe is pumped into negative pressure state, and be filled with suitable
Hydraulic fluid, this boiling point of liquid is low, readily volatilized, and tube wall has liquid-sucking core, and liquid-sucking core is made up of capillary-porous material, works as heat pipe
Hot junction when being heated, the liquid in heat pipe evaporates rapidly, and steam flows to cold end under small pressure differential, and discharges heat
Amount, regelation becomes liquid, and hot junction is flowed back in the effect that liquid leans on capillary force along porous material again, so circulates more than, heat is just
Endlessly cold end is reached by heat pipe hot junction.The thermal conductivity factor of heat pipe is the hundreds times of common metal or even thousands of times, and it can
With by substantial amounts of heat by the sectional area of very little at a distance transmission and without external force.
The heat transfer system of gas tank of the present utility model utilizes the high heat conduction characteristic of heat pipe, quickly can produce electrical equipment
Raw heat transfer is to sealing on aluminium sheet 4, it is to avoid the heat that electrical equipment produces cannot discharge and lead to failure of insulation even
The security of impact switch cubicle.Meanwhile, in the utility model, heat is by sealing that aluminium sheet is transmitted it is not necessary to consideration is right
The sealing problem of heat transfer system.
In the other embodiment of the heat transfer system of the utility model gas tank, the fixed structure of fixing heat pipe cold end position can
Think other structures, such as the clip structure by being fixed on sealing plate fixes heat pipe cold end.
In the other embodiment of the heat transfer system of the utility model gas tank, the height in heat pipe cold end and hot junction can be carried out
Regulation, the such as cold end of heat pipe and the hot junction of heat pipe are highly consistent or even cold end is less than heat pipe.
The specific embodiment of the utility model switch cabinet air box, including the electrical equipment in casing and casing, described casing
It is provided with the sealing plate for sealing gas tank pilot hole, in described casing, is provided with least one heat pipe, one end of described heat pipe is used
In near but do not contact electrical equipment and form hot junction to absorb the heat of electrical equipment generation, the heat pipe other end is fixed on described
To transfer heat to be formed cold end on sealing plate on the inner side of sealing plate, the opposite side of described sealing plate is provided with radiating dress
Put, in described casing, be additionally provided with the fixed structure for fixing described heat pipe cold end position.Wherein heat pipe, sealing plate, fixed knot
Structure and the structure of heat abstractor and position relationship all with consistent in the heat transfer system of above-mentioned gas insulation switch cabinet, its content
Will not be described here.
The specific embodiment of the utility model gas insulation switch cabinet, including switch cabinet air box, its structure and above-mentioned gas
Body insulated switch cabinet gas tank is consistent, and its content will not be described here.
Claims (10)
1. a kind of heat transfer system of gas tank it is characterised in that：Including the sealing plate for sealing gas tank pilot hole, described gas tank
Heat transfer system also includes at least one heat pipe, and one end of described heat pipe is used for absorbing heat and forms hot junction, and heat pipe hot junction is provided with
For near but do not contact electrical equipment and be fixed on described to absorb the heat dump of the heat of electrical equipment generation, the heat pipe other end
To transfer heat to be formed cold end on sealing plate on the side of sealing plate, the opposite side of described sealing plate is provided with radiating dress
Put, described heat pipe cold end and heat abstractor are correspondingly arranged at the both sides of described sealing plate, the heat transfer system of described gas tank also includes
For fixing the fixed structure of described heat pipe cold end position.
2. gas tank according to claim 1 heat transfer system it is characterised in that：At least one heat pipe is obliquely installed, heat pipe
Cold end is higher than heat pipe hot junction.
3. gas tank according to claim 1 heat transfer system it is characterised in that：Described heat dump includes multiple heat transfer sheets.
4. the gas tank according to any one of claim 1-3 heat transfer system it is characterised in that：Described heat abstractor includes many
Individual radiating fin, described radiating fin is vertically placed.
5. a kind of switch cabinet air box, including the electrical equipment in casing and casing it is characterised in that：Described casing be provided with for
The sealing plate of sealing gas tank pilot hole, is provided with least one heat pipe, one end of described heat pipe is used for absorbing heat in described casing
And form hot junction, heat pipe hot junction be provided near but do not contact electrical equipment with absorb electrical equipment generation heat heat absorption
Device, the heat pipe other end is fixed on to transfer heat to form cold end on sealing plate on the inner side of described sealing plate, described close
The opposite side of shrouding is provided with heat abstractor, and described heat pipe cold end and heat abstractor are correspondingly arranged at the both sides of described sealing plate,
It is additionally provided with the fixed structure for fixing described heat pipe cold end position in described casing.
6. switch cabinet air box according to claim 5 it is characterised in that：At least one heat pipe is obliquely installed, heat pipe cold end
Higher than heat pipe hot junction.
7. switch cabinet air box according to claim 5 it is characterised in that：Described heat dump includes multiple heat transfer sheets.
8. a kind of gas insulation switch cabinet, including switch cabinet air box, described switch cabinet air box includes electric in casing and casing
Element it is characterised in that：Described casing is provided with the sealing plate for sealing gas tank pilot hole, is provided with least one in described casing
Individual heat pipe, one end of described heat pipe is used for absorbing heat and forms hot junction, heat pipe hot junction be provided near but do not contact electrically
To absorb the heat dump of the heat of electrical equipment generation, the heat pipe other end is fixed on the inner side of described sealing plate with by heat element
Amount is transferred to form cold end on sealing plate, and described heat pipe hot junction is provided with heat dump, and the opposite side of described sealing plate is provided with scattered
Thermal, described heat pipe cold end and heat abstractor are correspondingly arranged at the both sides of described sealing plate, be additionally provided with described casing for
The fixed structure of fixing described heat pipe cold end position.
9. gas insulation switch cabinet according to claim 8 it is characterised in that：At least one heat pipe is obliquely installed, heat pipe
Cold end is higher than heat pipe hot junction.
10. gas insulation switch cabinet according to claim 8 it is characterised in that：Described heat dump includes multiple heat transfer sheets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620867004.4U CN205960484U (en) | 2016-08-11 | 2016-08-11 | Heat transfer system of gas insulation switch cabinet, cubical switchboard gas tank and gas tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620867004.4U CN205960484U (en) | 2016-08-11 | 2016-08-11 | Heat transfer system of gas insulation switch cabinet, cubical switchboard gas tank and gas tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205960484U true CN205960484U (en) | 2017-02-15 |
Family
ID=57975189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620867004.4U Active CN205960484U (en) | 2016-08-11 | 2016-08-11 | Heat transfer system of gas insulation switch cabinet, cubical switchboard gas tank and gas tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205960484U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253102A (en) * | 2016-08-11 | 2016-12-21 | 许继集团有限公司 | The heat transfer system of gas insulation switch cabinet, switch cabinet air box and gas tank |
| CN110635368A (en) * | 2019-08-12 | 2019-12-31 | 王朝仓 | Modular electric energy metering box |
-
2016
- 2016-08-11 CN CN201620867004.4U patent/CN205960484U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253102A (en) * | 2016-08-11 | 2016-12-21 | 许继集团有限公司 | The heat transfer system of gas insulation switch cabinet, switch cabinet air box and gas tank |
| CN110635368A (en) * | 2019-08-12 | 2019-12-31 | 王朝仓 | Modular electric energy metering box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| C14 | Grant of patent or utility model | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 1298 Xuchang City, Henan province 461000 XJ Avenue Patentee after: XJ Group Corp. Patentee after: Xuji delischer Electric Co.,Ltd. Patentee after: STATE GRID CORPORATION OF CHINA Address before: No. 1298 Xuchang City, Henan province 461000 XJ Avenue Patentee before: XJ Group Corp. Patentee before: XUCHANG XUJI DRIESCHER WEGBERG ELECTRIC Co.,Ltd. Patentee before: State Grid Corporation of China |
|
| CP01 | Change in the name or title of a patent holder |