CN113747763A - Heat dissipation system for substation exchange cabinet - Google Patents
Heat dissipation system for substation exchange cabinet Download PDFInfo
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- CN113747763A CN113747763A CN202111052386.7A CN202111052386A CN113747763A CN 113747763 A CN113747763 A CN 113747763A CN 202111052386 A CN202111052386 A CN 202111052386A CN 113747763 A CN113747763 A CN 113747763A
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 49
- 238000001816 cooling Methods 0.000 claims abstract description 30
- 239000010410 layer Substances 0.000 claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 239000011229 interlayer Substances 0.000 claims abstract description 9
- 238000009423 ventilation Methods 0.000 claims description 26
- 230000005855 radiation Effects 0.000 claims description 21
- 238000005192 partition Methods 0.000 claims description 12
- 241001465754 Metazoa Species 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 16
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000009133 cooperative interaction Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000006855 networking Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000000191 radiation effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
- H05K7/20718—Forced ventilation of a gaseous coolant
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0213—Venting apertures; Constructional details thereof
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- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention provides a heat dissipation system for a substation switch cabinet, and belongs to the technical field of substations. The cabinet comprises a cabinet top cooling fan assembly, a rear cabinet door air inlet assembly, an intra-cabinet switch interlayer front sealing plate and an intra-cabinet diversion fan assembly. Wherein exchange rack is inside through the effect of cabinet top radiator fan subassembly and interior guiding fan subassembly of cabinet, makes the air in the cabinet discharge through cabinet top radiator fan subassembly by supreme down, and the air outside the cabinet passes through in the back cabinet door air inlet assembly gets into the cabinet to because openly shrouding is to the influence of air mobility between the layer between the switch layer in the cabinet, make the air outside the cabinet be full of exchange rack very fast. The invention utilizes the flow guiding and heat dissipating effects of the cabinet top heat dissipating fan assembly and the flow guiding and heat dissipating assembly in the cabinet to enable air to flow in a relatively narrow and long area in the exchange cabinet along a fixed direction, thereby facilitating the quick exchange of air inside and outside the cabinet, ensuring the heat dissipating effect of the exchange cabinet and improving the heat dissipating efficiency of the exchange cabinet.
Description
Technical Field
The invention belongs to the technical field of transformer substations, and particularly relates to a heat dissipation system of a transformer substation switch cabinet.
Background
The intelligent transformer substation adopts advanced, reliable, integrated and environment-friendly intelligent equipment, takes total station information digitization, communication platform networking and information sharing standardization as basic requirements, automatically completes basic functions of information acquisition, measurement, control, protection, metering, detection and the like, and simultaneously has advanced functions of supporting real-time automatic control, intelligent adjustment, on-line analysis decision, cooperative interaction and the like of a power grid. The intelligent transformer substation is the inevitable trend of future transformer substation construction and transformation.
The switch is used as important equipment in the intelligent substation, and data and signals of the intelligent terminal, the merging unit, the protection device and the measurement and control device are transmitted through the switch, so that safe and stable operation of the switch is particularly important. Along with the propulsion of intelligent construction, the switch quantity that uses in the transformer substation constantly increases, for practicing thrift the space, be convenient for maintain, places 4 ~ 8 switches in same switch rack usually, causes the switch during operation heat dissipation difficulty, generates heat seriously, the temperature is high in the cabinet, and high temperature easily leads to ageing, inefficacy such as switch circuit, interface, and then leads to the switch trouble. Once a switch of the intelligent substation breaks down, the transmission of important information such as current and voltage is broken or delayed, and even serious people cause the failure or misoperation of a protection device, so that accidents such as large-area power failure are caused.
According to the specification of the technical specification of Ethernet switch at the process level of the intelligent substation of the south network, the environmental temperature of the switch in an indoor workplace is-25 to +55 ℃, but a plurality of switches are centrally installed in the switch cabinet of the intelligent substation at present, and the ventilation and heat dissipation capacity in the cabinet is insufficient. Through on-site infrared temperature measurement tests, when an intelligent substation normally operates, the average working environment temperature of a switch is about 58 ℃, and part of switch cabinets reach the high temperature of more than 70 ℃, which is far higher than the working environment temperature specified in the standard, so that the safe and stable operation of a power grid is seriously influenced.
The existing heat dissipation system of the exchange cabinet comprises a cabinet top fan, a cabinet top ventilation heat dissipation hole and a rear cabinet door ventilation heat dissipation hole, but the system has the following problems:
1. the heat radiation fan is only arranged on the top of the exchange cabinet, the power of the heat radiation fan is only enough to absorb hot air on the top of the exchange cabinet, strong air convection cannot be formed from bottom to top due to the high top of the exchange cabinet, and the exchangers on the middle and lower parts in the exchange cabinet cannot radiate heat in time; meanwhile, the heat radiation fan is arranged at the top in the exchange cabinet, so that the disassembly and assembly difficulty in defect elimination is increased.
2. The heat radiation fan at the top in the exchange cabinet is far away from the heat radiation ventilation hole at the top of the cabinet, the area of the heat radiation ventilation hole at the top of the cabinet is small, and the distance between the dust cover and the heat radiation ventilation hole at the top of the cabinet is too short, so that the air in the cabinet can not be effectively discharged, and the exhaust and heat radiation effects of the heat radiation fan are reduced.
3. The ventilation heat dissipation hole below the rear cabinet door of the switch is too few and the effective ventilation area is small, so that enough external cold air cannot enter the cabinet, and the cooling effect is poor.
4. The front shrouding between the switch layer is for sealing the plane in the switch cabinet, is unfavorable for the air to circulate between each layer switch, influences the air convection radiating effect.
Disclosure of Invention
In view of the above, the present invention is directed to solving the above-mentioned problems of the existing heat dissipation system for switch cabinets.
In order to solve the technical problems, the invention provides the following technical scheme:
the invention provides a heat dissipation system for a transformer substation exchange cabinet, which comprises:
the cabinet top heat dissipation fan assembly, the rear cabinet door air inlet assembly, the intra-cabinet exchanger interlayer front sealing plate and the intra-cabinet diversion fan assembly are arranged on the cabinet top;
the cabinet top cooling fan assembly is arranged at the top of the exchange cabinet and used for exhausting air in the exchange cabinet;
the rear cabinet door air inlet assembly is arranged on a rear cabinet door of the exchange cabinet and is used for flowing air outside the exchange cabinet into the exchange cabinet;
the inter-floor front sealing plate of the switch in the cabinet is arranged in the switch cabinet and used for circulating air among floors in the switch cabinet;
the flow guiding fan assembly in the exchange cabinet is arranged on the pillars at the bottom and the middle part in the exchange cabinet and is used for enabling air in the exchange cabinet to flow from bottom to top;
when the cabinet top radiating fan assembly and the flow guiding fan assembly in the cabinet operate, air in the exchange cabinet flows from the lower net and is exhausted through the cabinet top radiating fan assembly; air outside the switch cabinet flows in through the rear cabinet door air inlet assembly and flows into all layers in the switch cabinet from the front through the front surface sealing plates between the switch layers in the cabinet.
Further, the cabinet top radiator fan subassembly specifically includes:
the frame, the cooling fan and the cabinet top dustproof and small animal-proof separation net;
the frame is detachably fixed at the top of the exchange cabinet;
the heat radiation fan is fixed in the frame in a detachable mode, and the air exhaust surface of the heat radiation fan faces the outside of the exchange cabinet;
the dustproof and small animal-proof partition net on the cabinet top is detachably fixed on the frame.
Furthermore, the guide fan assembly in the cabinet comprises a plurality of guide fans, the guide fans are detachably fixed on the bottom and the middle support in the exchange cabinet, and the air exhaust surfaces of the guide fans face upwards.
Furthermore, be provided with quick plug interface on the switch cabinet, quick plug interface is used for radiator fan and guiding fan's power cord to carry out the plug on the switch cabinet.
Furthermore, the type and size of the heat radiation fan and the diversion fan are the same.
Further, the rear cabinet door air inlet assembly specifically comprises:
the rear cabinet door ventilation hole and the rear cabinet door dustproof and small animal-proof separation net;
the rear cabinet door ventilation hole is arranged on the rear cabinet door of the exchange cabinet;
the rear cabinet door is dustproof and prevents that the toy separates the net and fixes on the surface of the rear cabinet door of exchange rack with detachable mode.
Furthermore, the distribution density of the holes on the rear cabinet door is dustproof and prevents the small animals from being uniformly increased from bottom to top along the separation net.
Furthermore, a plurality of ventilation holes are uniformly distributed on the front face sealing plate between the layers of the switch in the cabinet.
In summary, the present invention provides a heat dissipation system for a substation switch cabinet, which includes a cabinet top heat dissipation fan assembly, a rear cabinet door air inlet assembly, an inter-layer front sealing plate of an in-cabinet switch, and an in-cabinet flow guiding fan assembly. Wherein exchange rack is inside through the effect of cabinet top radiator fan subassembly and interior guiding fan subassembly of cabinet, makes the air in the cabinet discharge through cabinet top radiator fan subassembly by supreme down, and the air outside the cabinet passes through in the back cabinet door air inlet assembly gets into the cabinet to because openly shrouding is to the influence of air mobility between the layer between the switch layer in the cabinet, make the air outside the cabinet be full of exchange rack very fast. The invention utilizes the flow guiding and heat dissipating effects of the cabinet top heat dissipating fan assembly and the flow guiding and heat dissipating assembly in the cabinet to enable air to flow in a relatively narrow and long area in the exchange cabinet along a fixed direction, thereby facilitating the quick exchange of air inside and outside the cabinet, ensuring the heat dissipating effect of the exchange cabinet and improving the heat dissipating efficiency of the exchange cabinet.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a front view of an exchange cabinet provided by an embodiment of the present invention;
fig. 2 is a side view of a switch cabinet provided by an embodiment of the invention;
FIG. 3 is a schematic view of the distribution of the vent holes of the rear cabinet door provided in the embodiment of the present invention on the rear cabinet door;
fig. 4 is a schematic view of a cabinet top dustproof and small animal-proof partition net in the cabinet top cooling fan assembly according to the embodiment of the present invention;
fig. 5 is a schematic view illustrating a heat dissipation fan and a frame according to an embodiment of the invention;
FIG. 6 is a partial schematic view of an inside of a rear cabinet door provided in an embodiment of the present invention;
FIG. 7 is a schematic view of a layout of an in-cabinet induced draft fan assembly according to an embodiment of the present invention;
fig. 8 is a side sectional view of the exchange cabinet according to the embodiment of the present invention when heat is dissipated.
In the drawings: 101. cabinet top radiator fan subassembly, 102, the interior switch layer positive shrouding of cabinet, 201, back cabinet door ventilation hole, 301, frame, 302, radiator fan, 303, the dustproof little animal of preventing of cabinet top separate the net, 401, back cabinet door, 402, the dustproof little animal of preventing of back cabinet door separates the net, 501, the interior guiding fan subassembly of cabinet.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The intelligent transformer substation adopts advanced, reliable, integrated and environment-friendly intelligent equipment, takes total station information digitization, communication platform networking and information sharing standardization as basic requirements, automatically completes basic functions of information acquisition, measurement, control, protection, metering, detection and the like, and simultaneously has advanced functions of supporting real-time automatic control, intelligent adjustment, on-line analysis decision, cooperative interaction and the like of a power grid. The intelligent transformer substation is the inevitable trend of future transformer substation construction and transformation.
The switch is used as important equipment in the intelligent substation, and data and signals of the intelligent terminal, the merging unit, the protection device and the measurement and control device are transmitted through the switch, so that safe and stable operation of the switch is particularly important. Along with the propulsion of intelligent construction, the switch quantity that uses in the transformer substation constantly increases, for practicing thrift the space, be convenient for maintain, places 4 ~ 8 switches in same switch rack usually, causes the switch during operation heat dissipation difficulty, generates heat seriously, the temperature is high in the cabinet, and high temperature easily leads to ageing, inefficacy such as switch circuit, interface, and then leads to the switch trouble. Once a switch of the intelligent substation breaks down, the transmission of important information such as current and voltage is broken or delayed, and even serious people cause the failure or misoperation of a protection device, so that accidents such as large-area power failure are caused.
According to the specification of the technical specification of Ethernet switch at the process level of the intelligent substation of the south network, the environmental temperature of the switch in an indoor workplace is-25 to +55 ℃, but a plurality of switches are centrally installed in the switch cabinet of the intelligent substation at present, and the ventilation and heat dissipation capacity in the cabinet is insufficient. Through on-site infrared temperature measurement tests, when an intelligent substation normally operates, the average working environment temperature of a switch is about 58 ℃, and part of switch cabinets reach the high temperature of more than 70 ℃, which is far higher than the working environment temperature specified in the standard, so that the safe and stable operation of a power grid is seriously influenced.
The existing heat dissipation system of the exchange cabinet comprises a cabinet top fan, a cabinet top ventilation heat dissipation hole and a rear cabinet door ventilation heat dissipation hole, but the system has the following problems:
1. the heat radiation fan is only arranged on the top of the exchange cabinet, the power of the heat radiation fan is only enough to absorb hot air on the top of the exchange cabinet, strong air convection cannot be formed from bottom to top due to the high top of the exchange cabinet, and the exchangers on the middle and lower parts in the exchange cabinet cannot radiate heat in time; meanwhile, the heat radiation fan is arranged at the top in the exchange cabinet, so that the disassembly and assembly difficulty in defect elimination is increased.
2. The heat radiation fan at the top in the exchange cabinet is far away from the heat radiation ventilation hole at the top of the cabinet, the area of the heat radiation ventilation hole at the top of the cabinet is small, and the distance between the dust cover and the heat radiation ventilation hole at the top of the cabinet is too short, so that the air in the cabinet can not be effectively discharged, and the exhaust and heat radiation effects of the heat radiation fan are reduced.
3. The ventilation heat dissipation hole below the rear cabinet door of the switch is too few and the effective ventilation area is small, so that enough external cold air cannot enter the cabinet, and the cooling effect is poor.
4. The front shrouding between the switch layer is for sealing the plane in the switch cabinet, is unfavorable for the air to circulate between each layer switch, influences the air convection radiating effect.
Based on the above, the invention provides a heat dissipation system for a transformer substation switch cabinet.
An embodiment of the heat dissipation system for a substation switching cabinet according to the present invention will be described in detail.
Referring to fig. 1 to 8, the present embodiment provides a heat dissipation system for a substation switch cabinet, including:
a cabinet top cooling fan assembly 101101, a rear cabinet door air inlet assembly, a cabinet internal switch interlayer front face seal plate 102102 and a cabinet internal guide fan assembly 501;
in this embodiment, the cabinet top cooling fan assembly 101 is installed at the top of the exchange cabinet, and is used for exhausting air in the exchange cabinet;
it should be noted that, as shown in fig. 2 and 4, the top cabinet heat dissipation fan assembly 101 exhausts the air inside the cabinet to the outside of the cabinet at the top of the switch cabinet. The cabinet top cooling fan assembly 101 may be composed of a frame 301, a cooling fan 302, and a cabinet top dust-proof and small animal-proof partition net.
Wherein the frame 301 of the cabinet top cooling fan assembly 101 is made of metal material, which can provide stable support for the cooling fan 302.
Since the top radiator fan assembly 101 is at the top of the exchange cabinet and is provided with large openings for the purpose of exhausting air. Over time, dust can enter through openings in the top of the switch cabinet, causing it to malfunction. Therefore, the frame 301 may further be provided with a top cover, the size of the top cover is to ensure that the opening of the frame 301 is completely covered, and a certain gap is left between the top cover and the frame 301, on one hand, the top cover is used for placing the heat dissipation fan 302, and on the other hand, the air exhaust effect of the heat dissipation fan 302 is ensured.
As shown in fig. 5, there may be more than one heat dissipation fan 302, and the number of the heat dissipation fans meets the heat dissipation requirement of the switch cabinet. The heat dissipation fans 302 can be connected or fixed on the frame 301 in a snap-in and pull-out manner, the shape and size of the cabinet top heat dissipation fan 302 are adapted to the frame 301, and the air exhaust surface of the fan faces upward. The power line of the cooling fan 302 is provided with a quick plugging interface, so that the defect can be eliminated quickly and conveniently, a special tool is not required to be used in the process of replacing the fan, and the defect eliminating work efficiency is improved.
The cabinet top is dustproof to prevent that toy separates net 303 can adopt the mode of buckle plug to fix on frame 301, and the cabinet top is dustproof to prevent that toy separates the area of net 303 and the adaptation of switch cabinet top trompil area to should laminate the switch cabinet top as far as possible, have dustproof and prevent the effect of toy.
In this embodiment, the rear cabinet door air intake assembly is mounted on the rear cabinet door 401 of the exchange cabinet, and is used for flowing air outside the exchange cabinet into the exchange cabinet;
it should be noted that the rear cabinet door air intake assembly is composed of a rear cabinet door vent 201 and a rear cabinet door dustproof and small animal prevention screen 402.
Wherein, as shown in fig. 3, the back cabinet door vent holes 201 are formed by cutting with a laser machine by a secondary forming process, and the quantity and size of the back cabinet door vent holes 201 should satisfy the ventilation and heat dissipation requirements of the exchange cabinet.
As shown in fig. 6, the rear cabinet door is dustproof and small animal-proof partition net 402 which is inserted and pulled out and is fixed on the rear cabinet door of the switch by screw compression, and the area of the partition net can cover the ventilation holes 201 of the rear cabinet door and is tightly attached to the rear cabinet door to play a role in preventing dust and small animals. The rear cabinet door dustproof and small animal prevention partition net 402 is distributed and arranged in a dense-upper-part and sparse-lower-part mode, and air inflow can be effectively adjusted.
In addition, due to the effect of the cabinet top heat dissipation fan 302, air entering from the upper portion of the rear cabinet door close to the heat dissipation fan 302 may be quickly exhausted by the heat dissipation fan 302. Therefore, the air in the area of the upper part of the cabinet door close to the heat dissipation fan 302 needs to flow slowly, the aperture of the partition net close to the partial area is set to be smaller, and the aperture of the partition net far away from the partial area is set to be larger. This ensures that the majority of the air outside the cabinet enters from the portion near the bottom of the cabinet. The air flow direction of the air in the cabinet is adapted to the flowing direction of the air from bottom to top, and the air flow direction is favorable for thorough circulation of the air in the exchange cabinet.
In this embodiment, the intra-cabinet switch layer front surface sealing plate 102 is installed in the switch cabinet and used for ventilation of inter-cabinet air inside the switch cabinet;
it should be noted that, as shown in fig. 1, the inter-cabinet-switch-layer front surface closing plate 102 is designed to be a vent, the number and size of the vents meet the heat dissipation requirement, and the inter-cabinet-switch-layer front surface closing plate 102 meets the requirement of inter-switch visual isolation.
Openly shrouding 102 accessible screw fixed mounting is on the switch cabinet between the switch layer in the cabinet, and the shrouding adopts the mesh design between the switch layer, when satisfying the vision isolation demand, can realize the function of convection current around the air in the switch cabinet, improves the radiating efficiency of switch cabinet.
In this embodiment, as shown in fig. 7, the in-cabinet guiding fan assemblies 501 are installed on the pillars at the bottom and the middle part in the exchange cabinet, and are used for the air in the exchange cabinet to flow from bottom to top;
it should be noted that, since the cabinet top cooling fan assembly 101 is disposed at the top of the exchange cabinet, the power of the cooling fan 302 cannot be increased infinitely. The air in the lower half of the cabinet is relatively less affected by the cooling fan 302. Therefore, the guide fan components in the cabinet can be arranged on the pillars at the bottom and the middle part in the exchange cabinet so as to increase the mobility of air in the cabinet from bottom to top.
The in-cabinet guiding fan assembly 501 is composed of a plurality of guiding fans, and the number of the guiding fans meets the heat dissipation requirement of the switch cabinet and has certain redundancy.
The diversion fan in the cabinet can be arranged on the pillars at the bottom and the middle part in the exchange cabinet in a way of screwing the nuts by hands, the air exhaust surface faces upwards, and the air in the cabinet is forced to circulate from bottom to top. The fan power cord is equipped with quick plug interface, but the convenient disappearance of quick replacement need not to use specialized tool in the fan replacement process, improves the working efficiency that disappears.
The fan in the cabinet top cooling fan assembly 101 is the same as the fan in the guide fan assembly in the cabinet in type and size, and a spare part of one type does not need to be added.
In the present embodiment, as shown in fig. 8, when the top radiator fan assembly 101 and the in-cabinet guiding fan assembly are operated, the air in the exchange cabinet flows from the lower net and is exhausted through the top radiator fan assembly 101; air outside the switch cabinet flows in through the rear cabinet door air inlet assembly and flows into each layer in the switch cabinet from the front through the switch layer front sealing plate 102 in the cabinet;
it can be understood that, the position of switch counter top radiator fan subassembly 101 on the cabinet, diversion fan subassembly in the cabinet, positive shrouding 102 was arranged and guide effect to circulation of air when cabinet top radiator fan subassembly 101 and the interior diversion fan subassembly of cabinet moved between the back cabinet door air inlet subassembly and the switch layer in the cabinet for the cabinet is discharged to the air in the cabinet according to from supreme flow direction down in comparatively long and narrow region in the cabinet, thereby makes the heat in the cabinet brought out rapidly, and the exchange cabinet realizes quick heat dissipation cooling.
The embodiment provides a heat dissipation system for a substation exchange cabinet, which comprises a cabinet top heat dissipation fan assembly, a rear cabinet door air inlet assembly, an intra-cabinet exchanger interlayer front sealing plate and an intra-cabinet diversion fan assembly. The interior of the exchange cabinet is discharged through the cabinet top cooling fan assembly from bottom to top under the action of the cabinet top cooling fan assembly and the flow guide fan assembly in the cabinet, air outside the cabinet enters the cabinet through the rear cabinet door air inlet assembly, and due to the influence of the interlayer front sealing plate of the switch in the cabinet on interlayer air fluidity, the exchange cabinet is quickly filled with the air outside the cabinet, so that the functions of forced discharge of hot air in the exchange cabinet, forced convection of air in the cabinet and forced suction of cold air outside the cabinet can be realized, the problems of heat accumulation in the cabinet and unsmooth convection of air in the cabinet from top to bottom and from front to back are effectively solved, the environmental temperature of the switch in the cabinet is controlled in a safety range, and the reliable operation of the switch in the cabinet is ensured. The invention utilizes the flow guiding and heat dissipating effects of the cabinet top heat dissipating fan assembly and the flow guiding and heat dissipating assembly in the cabinet to enable air to flow in a relatively narrow and long area in the exchange cabinet along a fixed direction, thereby facilitating the quick exchange of air inside and outside the cabinet, ensuring the heat dissipating effect of the exchange cabinet and improving the heat dissipating efficiency of the exchange cabinet.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. A substation switch cabinet cooling system, comprising:
the cabinet top heat dissipation fan assembly, the rear cabinet door air inlet assembly, the intra-cabinet exchanger interlayer front sealing plate and the intra-cabinet diversion fan assembly are arranged on the cabinet top;
the cabinet top cooling fan assembly is arranged at the top of the exchange cabinet and used for exhausting air in the exchange cabinet;
the rear cabinet door air inlet assembly is arranged on a rear cabinet door of the exchange cabinet and is used for allowing air outside the exchange cabinet to flow in;
the inter-layer front face sealing plate of the switch in the cabinet is arranged in the switch cabinet and is used for circulating air among the layers in the switch cabinet;
the flow guide fan assembly in the exchange cabinet is arranged on the pillars at the bottom and the middle part in the exchange cabinet and is used for enabling air in the exchange cabinet to flow from bottom to top;
when the cabinet top cooling fan assembly and the in-cabinet diversion fan assembly operate, air in the exchange cabinet flows from the lower net and is exhausted through the cabinet top cooling fan assembly; air outside the exchange cabinet flows in through the rear cabinet door air inlet assembly and flows into all the layers in the exchange cabinet from the front side through the switch layer-to-layer front sealing plates in the cabinet.
2. The substation switching cabinet cooling system of claim 1, wherein the top cooling fan assembly specifically comprises:
the frame, the cooling fan and the cabinet top dustproof and small animal-proof separation net;
the frame is detachably fixed at the top of the exchange cabinet;
the heat radiation fan is detachably fixed in the frame, and the air exhaust surface of the heat radiation fan faces the outside of the exchange cabinet;
the dustproof and small animal-proof partition net on the cabinet top is detachably fixed on the frame.
3. The substation switching cabinet cooling system of claim 2, wherein the in-cabinet induced draft fan assembly comprises a plurality of induced draft fans removably secured to the bottom and middle posts in the switching cabinet with their exhaust air facing upward.
4. The heat dissipation system of the switching cabinet of the substation according to claim 3, wherein a quick plugging interface is provided on the switching cabinet, and the quick plugging interface is used for plugging and unplugging the power lines of the heat dissipation fan and the diversion fan on the switching cabinet.
5. The substation switching cabinet cooling system of claim 3, wherein the cooling fan and the induced draft fan are the same in type and size.
6. The substation switching cabinet heat dissipation system of claim 1, wherein the rear cabinet door air inlet assembly specifically comprises:
the rear cabinet door ventilation hole and the rear cabinet door dustproof and small animal-proof separation net;
the rear cabinet door ventilation hole is arranged on a rear cabinet door of the exchange cabinet;
the rear cabinet door dustproof and small animal-proof partition net is detachably fixed on the surface of the rear cabinet door of the exchange cabinet.
7. The substation switching cabinet heat dissipation system of claim 3, wherein the distribution density of the holes in the back cabinet door dust-proof small animal partition net is uniformly increased from bottom to top along the partition net.
8. The heat dissipation system of the substation switch cabinet as claimed in claim 1, wherein a plurality of ventilation holes are uniformly distributed on the inter-cabinet switch-layer front face sealing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111052386.7A CN113747763B (en) | 2021-09-08 | 2021-09-08 | Heat dissipation system of transformer substation exchange cabinet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111052386.7A CN113747763B (en) | 2021-09-08 | 2021-09-08 | Heat dissipation system of transformer substation exchange cabinet |
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| CN113747763A true CN113747763A (en) | 2021-12-03 |
| CN113747763B CN113747763B (en) | 2023-12-19 |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN112492405A (en) * | 2020-12-16 | 2021-03-12 | 沈阳工程学院 | A switch rack for improving switch radiating efficiency |
| CN113038757A (en) * | 2021-03-09 | 2021-06-25 | 吴细琼 | Intelligent communication equipment cabinet convenient to move |
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| US20030035264A1 (en) * | 2001-07-26 | 2003-02-20 | Marc Hartel | Switchgear cabinet with at least one cabinet door and a fan-assisted air circulation on an interior |
| CN1652675A (en) * | 2004-02-07 | 2005-08-10 | 华为技术有限公司 | Heat radiating system |
| CN101299571A (en) * | 2008-03-14 | 2008-11-05 | 北京合康亿盛科技有限公司 | Circulation cold air apparatus for high voltage frequency conversion equipment |
| WO2012075624A1 (en) * | 2010-12-07 | 2012-06-14 | 北京纳源丰科技发展有限公司 | Integrative refrigerating cabinet |
| JP2012177959A (en) * | 2011-02-25 | 2012-09-13 | Hitachi Ltd | Server device and electronic apparatus cooling system |
| CN105658033A (en) * | 2016-01-26 | 2016-06-08 | 华为技术有限公司 | Device with heat exchange |
| CN109757079A (en) * | 2018-12-20 | 2019-05-14 | 河南平高通用电气有限公司 | Heat dissipation structure for machine cabinet |
| CN112492405A (en) * | 2020-12-16 | 2021-03-12 | 沈阳工程学院 | A switch rack for improving switch radiating efficiency |
| CN113038757A (en) * | 2021-03-09 | 2021-06-25 | 吴细琼 | Intelligent communication equipment cabinet convenient to move |
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|---|---|
| CN113747763B (en) | 2023-12-19 |
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