CN211017945U - 10KV heavy current switch cabinet - Google Patents
10KV heavy current switch cabinet Download PDFInfo
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- CN211017945U CN211017945U CN201921878462.8U CN201921878462U CN211017945U CN 211017945 U CN211017945 U CN 211017945U CN 201921878462 U CN201921878462 U CN 201921878462U CN 211017945 U CN211017945 U CN 211017945U
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Abstract
The utility model discloses a 10KV heavy current switch cabinet, which comprises a cabinet body and a heat dissipation device; the heat dissipation device is connected with the cabinet body. The utility model discloses a set up heat abstractor on the cabinet body, utilize heat abstractor to dispel the heat to the heat that the internal production of cabinet. This embodiment carries out three people through setting up 5 fans to the cabinet body, and its efficient completion that can be quick dispels the heat to guarantee the operation that components and parts of the internal portion of cabinet can be stable.
Description
Technical Field
The utility model relates to a power grid equipment technical field, more specifically relates to a 10KV heavy current switch cabinet.
Background
With the installation and use of a large amount of 10kV switch cabinets in a power grid and the continuous rise of power loads, the switch cabinets are influenced by materials and design. When leaving the factory, the cabinet body does not have a forced cooling fan, so that internal overheating becomes a common problem in the operation of the switch cabinet when high-load operation is caused, and the overheating of the switch cabinet directly influences the safe and stable operation of equipment. Furthermore, the overheating problem is a developing process, and if not controlled, the overheating level is worsened and has a great influence on the performance of the insulation and the equipment life. In severe cases, the contact can be burnt to cause single-phase grounding or short circuit.
In 2016, 11 months and 03 days, a #1 main transformer of a golden station is powered off, a #2 main transformer bears 10kV 1M and 2M bus loads, a #2 main transformer becomes 502 switch operating current which is about 1900A, the temperature of the upper layer of a switch chamber reaches 85.6 ℃ after infrared temperature measurement, each contact surface of a switch and an isolation disconnecting link has no protruding heating point, and the safe and stable operation of a switch cabinet is seriously influenced by overhigh temperature. Therefore, measures are urgently required to control further deterioration of the temperature.
The temperature of the low-voltage switch cabinet of the golden station is too high, and the switch cabinet belongs to an XGN metal closed type through field inspection. Because the cabinet body adopts the natural convection mode to dispel the heat, the heat dissipation trompil is located circuit breaker top department, and the problem of generating heat of cubical switchboard mainly is because the circuit breaker room heat dissipation is smooth to cause. The pressure release apron at cubical switchboard top has only left very little mesh heat dissipation to generating line room top and circuit breaker room top, is almost equivalent to completely sealed, and the headspace is too little, leads to the steam of generating line room and circuit breaker room to rise to the top after, can't in time release outside the cabinet, gathers and leads to the internal temperature of cabinet too high at cubical switchboard inside.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve current cubical switchboard heat dispersion poor, lead to the problem of the safety and stability operation of the too high influence cubical switchboard of temperature in the cubical switchboard, provide a 10KV heavy current cubical switchboard, it has good through-hole effect, and the thermal diffusivity is strong, guarantees cubical switchboard safety and stability's operation.
In order to realize the above, the utility model discloses the purpose, the technical scheme of adoption as follows: a10 KV heavy current switch cabinet comprises a cabinet body and a heat dissipation device; the heat dissipation device is connected with the cabinet body.
The utility model discloses a set up heat abstractor on the cabinet body of cubical switchboard, utilize the effectual timely discharge out of the heat that heat abstractor produced the internal portion of cabinet. Thereby realize the cooling of dispelling the heat to the cabinet body, the effectual radiating problem of cabinet body inside of having solved.
Preferably, the heat dissipation device comprises a crossflow fan and a plurality of heat dissipation fans; the cross flow fan is arranged in the cabinet body; the heat radiation fan is arranged outside the cabinet body and communicated with the inside of the cabinet body; the cabinet body on the corresponding air inlet through-hole, air-out through-hole that is equipped with.
Furthermore, the air inlet through hole is provided with a dustproof filter screen and an arc-proof baffle; the dustproof filter screen is arranged outside the cabinet body; the arc-proof baffle is arranged in the cabinet body.
Furthermore, the cross flow fan is arranged at the bottom of the cabinet body, and the corresponding air inlet through hole is arranged on the side surface of the bottom of the cabinet body; the air outlet through hole is arranged at the top of the cabinet body.
Furthermore, the number of the heat radiation fans is 4, and the number of the heat radiation fans is respectively a first heat radiation fan, a second heat radiation fan and a third heat radiation fan; the first cooling fan and the second cooling fan are both arranged on the side face of the cabinet body; the third cooling fan is arranged at the top of the cabinet body, and the number of the third cooling fans is 2.
Still further, the cabinet body comprises a circuit breaker chamber and a bus chamber; the bus chamber is arranged above the breaker chamber; the crossflow fan is arranged at the bottom of the breaker chamber; the third cooling fan is arranged at the top of the bus chamber; the first cooling fan is arranged on the side face of the breaker chamber, and the second cooling fan is arranged on the side face of the bus chamber.
Furthermore, the first cooling fan is an air inlet fan; the second heat dissipation fan is an air outlet fan; and the third cooling fans arranged at the top of the bus chamber are air outlet machines.
And furthermore, a ventilation channel is arranged at the top of the breaker chamber and is connected with a third heat dissipation fan at the top of the bus chamber, and the breaker chamber and the bus chamber are provided with ventilation holes communicated with each other.
The temperature control system also comprises a temperature controller WK, a plurality of temperature sensors CG, a switching power supply U, a first control relay CJ, a second control relay CJ and a change-over switch SA;
furthermore, a first power supply end of the temperature controller WK is connected with a single-phase 220V power supply through a change-over switch SA; a second power supply end of the temperature controller WK is connected with a single-phase 220V power supply through a first control relay CJ;
the switching power supply U is directly connected to two ends of a single-phase 220V power supply, converts alternating current 220V into direct current 24V, and provides required working voltage for the temperature measuring sensor CG;
the temperature sensor CG is electrically connected with the temperature controller WK and transmits the acquired temperature data to the temperature controller WK;
the crossflow fan and the heat radiation fan are connected to two ends of a single-phase 220V power supply through a second control relay CJ;
and the control end of the second control relay CJ is electrically connected with the control end of the temperature controller WK.
Still further, still include air switch KK; the change-over switch SA, the switch power supply U, the first control relay CJ and the second control relay CJ are connected with a single-phase 220V power supply through a control switch KK.
The utility model has the advantages as follows: the utility model discloses a set up heat abstractor on the cabinet body, utilize heat abstractor to dispel the heat to the heat that the internal production of cabinet. This embodiment carries out three people through setting up 5 fans to the cabinet body, and its efficient completion that can be quick dispels the heat to guarantee the operation that components and parts of the internal portion of cabinet can be stable.
Drawings
Fig. 1 is a schematic structural diagram of a 10KV high-current switch cabinet described in embodiment 1.
Fig. 2 is a control circuit diagram of the heat radiation fan and the crossflow fan in embodiment 2.
FIG. 3 is a pin connection diagram of the crossflow blower and the heat dissipation blower of FIG. 2.
Fig. 4 is a pin connection diagram of the thermal controller of fig. 2.
Fig. 5 is a pin connection diagram of the control relay of fig. 2.
Fig. 6 is a connection diagram of the transfer switch and the air switch in fig. 2.
Fig. 7 is a connection diagram of the blower fan of fig. 2.
In the figure, 1-cabinet body, 2-cross flow fan, 3-air inlet through hole, 4-breaker chamber, 5-bus chamber, 6-first cooling fan, 7-second cooling fan, 8-third cooling fan and 9-ventilation channel.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Example 1
The cabinet body of current cubical switchboard adopts the natural convection mode to dispel the heat, and set up the heat dissipation trompil and be located circuit breaker top department, thereby the problem of generating heat that forms the cubical switchboard is that the circuit breaker room heat dissipation is not smooth to cause, the pressure release apron at cubical switchboard top has only left very little mesh heat dissipation to generating bus-bar room top and circuit breaker room top, almost equally as totally enclosed, the headspace is too little, lead to behind the steam of generating bus-bar room and circuit breaker room rises to the top, outside unable timely release the cabinet, gather and lead to the interior high temperature of cabinet inside the cubical switchboard that leads to. This embodiment improves the cabinet body of cubical switchboard to the design defect of above prior art, specifically as follows:
as shown in fig. 1, a 10KV large-current switch cabinet comprises a cabinet body 1 and a heat dissipation device; the heat dissipation device is connected with the cabinet body 1.
This embodiment is through setting up heat abstractor on the cabinet body 1 at the cubical switchboard, utilizes heat abstractor to the effectual timely discharge out of the heat that the internal portion of cabinet produced. Thereby realize the cooling of dispelling the heat to the cabinet body, the effectual radiating problem of cabinet body inside of having solved.
The heat dissipation device comprises a crossflow fan 2; the cabinet body 1 is correspondingly provided with an air inlet through hole 3 and an air outlet through hole. The air inlet through hole 3 is provided with a dustproof filter screen and an arc-proof baffle; the dustproof filter screen is arranged outside the cabinet body 1; the arc-proof baffle is arranged inside the cabinet body 1. Through setting up dustproof filter screen and being favorable to preventing that outside debris from being blown into the internal portion of cabinet to avoid the internal portion of cabinet 1 to be damaged. Meanwhile, the anti-electric arc baffle is arranged in the cabinet body to prevent the static electricity generated inside from damaging the human body.
The crossflow blower 2 is arranged at the bottom of the cabinet body 1, and the corresponding air inlet through hole 3 is arranged on the side surface of the bottom of the cabinet body 1; the air outlet through hole is arranged at the top of the cabinet body 1. The crossflow fan 2 can blow air upwards from the bottom of the cabinet body 1, and the heat generated by the cabinet body 1 can be taken away from the top of the cabinet body 1 by the air.
The heat dissipation device also comprises a plurality of heat dissipation fans; the cooling fan is arranged outside the cabinet body 1 and is connected and communicated with the inside of the cabinet body.
The number of the heat radiation fans is 4, and the heat radiation fans are respectively a first heat radiation fan 6, a second heat radiation fan 7 and a third heat radiation fan 8; the first cooling fan 6 and the second cooling fan 7 are arranged on the side face of the cabinet body; the third cooling fan 8 is arranged at the top of the cabinet body, and the number of the third cooling fan 8 is 2. This embodiment can improve the radiating efficiency through setting up 4 radiator fan.
The cabinet body comprises a circuit breaker chamber 4 and a bus chamber 5; the bus chamber 5 is arranged above the breaker chamber 4; the crossflow blower 2 is arranged at the bottom of the breaker chamber 4; the third cooling fan 8 is arranged at the top of the bus chamber 5; the first cooling fan 6 is arranged on the side of the breaker chamber 4, and the second cooling fan 7 is arranged on the side of the bus chamber 5. The first cooling fan 6 is an air inlet fan; the second heat dissipation fan 7 is an air outlet machine; and the third cooling fans 8 arranged at the top of the bus chamber 5 are air outlet fans. The top of the circuit breaker chamber 4 is provided with a ventilation channel 9, and the ventilation channel 9 is connected with a third cooling fan 8 at the top of the bus chamber 5; the ventilation channel 9 and the bus chamber are mutually independent, and the ventilation channel 9 is a ventilation pipeline. The breaker chamber 4 and the bus chamber 5 are provided with ventilation holes communicated with each other.
This embodiment forms 2 heat dissipation wind channels through above setting, and wherein the wind channel of convection current is formed with the second cooling fan of generating line room side to the first cooling fan on the side of the circuit breaker room, and wind energy enters into the cabinet body from first cooling fan and takes away the heat from second cooling fan, and another wind channel is that constant current fan takes the inside of the cabinet body with the wind from air inlet through hole, and the third cooling fan from the ventilation passageway at circuit breaker room top, generating line room top is dispelled out again.
This embodiment is passed through 2 heat dissipation channels that crossflow fan, 4 cooling fan formed and can be quick dispels the heat to the cabinet body to guaranteed that the components and parts of the internal portion of cabinet can steady operation under reasonable temperature.
Example 2
On the basis of embodiment 1, in this embodiment, in order to control the temperature in the cabinet body well, an automatic or manual control circuit is provided to control the operating state of the crossflow blower and the cooling blower. The control circuit specifically comprises the following components:
as shown in fig. 2, 3, 4, 5, 6, and 7, the temperature sensor system further includes a temperature controller WK, a plurality of temperature sensors CG, a switching power supply U, a first control relay CJ, a second control relay CJ, and a transfer switch SA;
a first power supply end of the temperature controller WK is connected with a single-phase 220V power supply through a change-over switch SA; a second power supply end of the temperature controller WK is connected with a single-phase 220V power supply through a first control relay CJ;
the switching power supply U is directly connected to two ends of a single-phase 220V power supply, converts alternating current 220V into direct current 24V, and provides required working voltage for the temperature measuring sensor CG;
the temperature sensor CG is electrically connected with the temperature controller WK and transmits the acquired temperature data to the temperature controller WK;
the crossflow fan and the heat radiation fan are connected to two ends of a single-phase 220V power supply through a second control relay CJ;
and the control end of the second control relay CJ is electrically connected with the control end of the temperature controller WK.
The temperature sensor CG of this embodiment sets up inside the cabinet body, and this embodiment sets up 3 temperature sensor CG. In the embodiment, the temperature sensor CG is used for measuring the temperature inside the cabinet, the temperature threshold value is set on the temperature controller WK, and when the temperature inside the cabinet exceeds the set temperature threshold value, the temperature controller WK controls the control end of the second control relay CJ so as to control the second control relay CJ to be closed or disconnected. Thereby can realize the internal temperature of automatic control cabinet.
If manual control is needed, the embodiment controls through the change-over switch SA, and if pins 3 and 4 of the change-over switch SA are communicated, the temperature controller WK is used for controlling the second control relay CJ, namely, automatic control is performed.
If pins 7 and 8 of the transfer switch SA are communicated, the second control relay CJ is closed, and the crossflow fan and the heat radiation fan are all started.
In order to ensure that the control circuit can operate safely and stably, an air switch KK is further arranged on the control circuit; the change-over switch SA, the switch power supply U, the first control relay CJ and the second control relay CJ are connected with a single-phase 220V power supply through a control switch KK. The air switch can protect the whole circuit.
In the figure, an air switch-KK, a temperature controller-WK, a switching power supply-U, a temperature measuring sensor-CG, a change-over switch SA, a control relay-CJ, a terminal row-DZ, a red light-HD, a green light-L D, a cross flow fan and a heat dissipation fan-M
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (9)
1. The utility model provides a 10KV heavy current cubical switchboard, includes the cabinet body, its characterized in that: the device also comprises a heat dissipation device; the heat dissipation device is connected with the cabinet body;
the heat dissipation device comprises a cross flow fan and a plurality of heat dissipation fans; the cross flow fan is arranged in the cabinet body; the heat radiation fan is arranged outside the cabinet body and communicated with the inside of the cabinet body; the cabinet body on the corresponding air inlet through-hole, air-out through-hole that is equipped with.
2. A 10KV high-current switch cabinet according to claim 1, wherein: the air inlet through hole is provided with a dustproof filter screen and an arc-proof baffle; the dustproof filter screen is arranged outside the cabinet body; the arc-proof baffle is arranged in the cabinet body.
3. A 10KV high-current switch cabinet according to claim 2, wherein: the cross flow fan is arranged at the bottom of the cabinet body, and the corresponding air inlet through hole is arranged on the side surface of the bottom of the cabinet body; the air outlet through hole is arranged at the top of the cabinet body.
4. A 10KV high-current switch cabinet according to claim 3, wherein: the number of the heat dissipation fans is 4, and the heat dissipation fans are respectively a first heat dissipation fan, a second heat dissipation fan and a third heat dissipation fan; the first cooling fan and the second cooling fan are both arranged on the side face of the cabinet body; the third cooling fan is arranged at the top of the cabinet body, and the number of the third cooling fans is 2.
5. A10 KV high-current switch cabinet according to claim 4, wherein: the cabinet body comprises a circuit breaker chamber and a bus chamber; the bus chamber is arranged above the breaker chamber; the crossflow fan is arranged at the bottom of the breaker chamber; the third cooling fan is arranged at the top of the bus chamber; the first cooling fan is arranged on the side face of the breaker chamber, and the second cooling fan is arranged on the side face of the bus chamber.
6. A10 KV high-current switch cabinet according to claim 5, wherein: the first cooling fan is an air inlet fan; the second heat dissipation fan is an air outlet fan; and the third cooling fans arranged at the top of the bus chamber are air outlet machines.
7. A10 KV high-current switch cabinet according to claim 5, wherein: the top of the breaker chamber is provided with a ventilation channel, and the ventilation channel is connected with a third cooling fan at the top of the bus chamber; and the breaker chamber and the bus chamber are provided with ventilation holes communicated with each other.
8. A10 KV high-current switch cabinet according to any one of claims 2, 3, 5, 6 and 7, wherein: the temperature control system also comprises a temperature controller WK, a plurality of temperature sensors CG, a switching power supply U, a first control relay CJ, a second control relay CJ and a change-over switch SA;
a first power supply end of the temperature controller WK is connected with a single-phase 220V power supply through a change-over switch SA; a second power supply end of the temperature controller WK is connected with a single-phase 220V power supply through a first control relay CJ;
the switching power supply U is directly connected to two ends of a single-phase 220V power supply, converts alternating current 220V into direct current 24V, and provides required working voltage for the temperature measuring sensor CG;
the temperature sensor CG is electrically connected with the temperature controller WK and transmits the acquired temperature data to the temperature controller WK;
the crossflow fan and the heat radiation fan are connected to two ends of a single-phase 220V power supply through a second control relay CJ;
and the control end of the second control relay CJ is electrically connected with the control end of the temperature controller WK.
9. A 10KV high-current switch cabinet according to claim 8, wherein: the air switch KK is also included; the change-over switch SA, the switch power supply U, the first control relay CJ and the second control relay CJ are connected with a single-phase 220V power supply through a control switch KK.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921878462.8U CN211017945U (en) | 2019-11-01 | 2019-11-01 | 10KV heavy current switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921878462.8U CN211017945U (en) | 2019-11-01 | 2019-11-01 | 10KV heavy current switch cabinet |
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| Publication Number | Publication Date |
|---|---|
| CN211017945U true CN211017945U (en) | 2020-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921878462.8U Active CN211017945U (en) | 2019-11-01 | 2019-11-01 | 10KV heavy current switch cabinet |
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| CN (1) | CN211017945U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112017847A (en) * | 2020-08-26 | 2020-12-01 | 广东电网有限责任公司广州供电局 | Temperature control method and device in transformer room |
-
2019
- 2019-11-01 CN CN201921878462.8U patent/CN211017945U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112017847A (en) * | 2020-08-26 | 2020-12-01 | 广东电网有限责任公司广州供电局 | Temperature control method and device in transformer room |
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