CN220325070U - Ring main unit PT voltage switching device - Google Patents
Ring main unit PT voltage switching device Download PDFInfo
- Publication number
- CN220325070U CN220325070U CN202321126659.2U CN202321126659U CN220325070U CN 220325070 U CN220325070 U CN 220325070U CN 202321126659 U CN202321126659 U CN 202321126659U CN 220325070 U CN220325070 U CN 220325070U
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- China
- Prior art keywords
- main unit
- ring main
- heat dissipation
- limiting
- gas
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- 230000017525 heat dissipation Effects 0.000 claims description 26
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 8
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 239000000428 dust Substances 0.000 abstract description 4
- 238000001035 drying Methods 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000012535 impurity Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
Abstract
The utility model discloses a ring main unit PT voltage switching device, which comprises a ring main unit body, wherein the ring main unit body is connected with a cabinet cover through bolts and nuts, and is characterized in that: the utility model starts the negative pressure air extractor, improves circulation of gas of the ring main unit body, prevents dust from entering, realizes heating and drying of the gas entering the ring main unit body, prevents that the gas entering the ring main unit body has higher humidity, and causes faults such as short circuit and the like of a voltage transformer under a humid environment.
Description
Technical Field
The utility model relates to the technical field of power system protection, in particular to a ring main unit PT voltage switching device.
Background
Transformers are important elements in power systems, which are important intermediate links in power transmission, and are elements in power systems which are prone to failure. Can act correctly after the fault occurs, and has very important function for ensuring the safe and stable and economic operation of the whole power system.
Chinese patent publication No. CN207250943U, in which a dual-power supply ring main unit is proposed, the components are connected by a top enclosed bus, and the enclosed bus has an open-type current transformer; the utility model adopts the electric locking and the mechanical locking to be used in the dual-power ring main unit at the same time, the scheme is reliable and easy to realize, and is also convenient for the dual-power ring main unit to realize flexible switching of the dual-power switch in the spare power automatic switching device, thereby realizing ring power supply, ensuring uninterrupted power supply and improving the reliability of power supply, and in the scheme, faults such as short circuit and the like of a voltage transformer can be caused under a humid environment;
patent document with application number 202122558061.8 discloses a looped netowrk cabinet PT voltage switching device, and its technical scheme main points are: the device comprises a first shell, wherein a second shell is arranged on the top surface of the first shell, a voltage transformer is fixedly arranged in the first shell, and a connecting plug is arranged on one side of the first shell; the protection device, protection device sets up the inside of first shell, is used for the protection voltage transformer, protection device includes the organism box, the organism box is in inside one side of first shell, there is temperature and humidity sensor in the inside of first shell, there is driving motor in inside one side of organism box, the one end of driving motor drive shaft has the rotary vane, keep normal operating through voltage transformer guaranteeing the looped netowrk cabinet when exchanging the decompression, drive the rotary vane through the driving motor drive shaft and rotate and produce the air current and cool down voltage transformer, avoid voltage transformer high temperature to lead to the looped netowrk cabinet to break down, but in the use external gas gets into the looped netowrk cabinet internal, impurity in the gas gets into the looped netowrk cabinet internal simultaneously, causes looped netowrk cabinet body impurity more, and dangerous easily takes place, and gas circulation is slow, and the radiating effect is poor, can also lead to faults such as short circuit under humid environment simultaneously.
Disclosure of Invention
The utility model aims to solve the problems, and provides a ring main unit PT voltage switching device.
In order to achieve the above purpose, the present utility model provides the following technical solutions: including the looped netowrk cabinet body, be connected with cabinet body lid, its characterized in that through bolt and nut on the looped netowrk cabinet body: the utility model discloses a cabinet body lid, including cabinet body lid up end negative pressure air pump, negative pressure air pump upper end gas outlet fixed intercommunication has L type pipeline, fixed intercommunication on the negative pressure air pump has the negative pressure suction head, the fixed heat dissipation box that is provided with of looped netowrk cabinet body left side terminal surface, the heat dissipation box contains slip recess, braced frame, filter screen and spacing subassembly.
Preferably, the negative pressure suction head penetrates through the cabinet body cover and is positioned above the right side of the ring main unit body.
Preferably, a right end bolt and nut on the inner wall of the ring main unit body is connected with a voltage transformer.
Preferably, a U-shaped radiating fin is connected to the bolt and the nut on the left side end face of the voltage transformer.
Preferably, the left end face of the radiating box body is provided with a plurality of radiating holes with the same specification, the radiating box body is fixedly provided with a sliding groove, the sliding groove is fixedly connected with a sliding rod, a supporting frame is fixedly arranged between the sliding rods, a filter screen is fixedly arranged on the supporting frame, a limiting hole is fixedly arranged on the supporting frame, and a limiting assembly is arranged on the radiating box body.
Preferably, the limiting component comprises a through hole, a limiting rod and a limiting spring, the through hole is fixed on the heat dissipation box body, the limiting rod is connected to the through hole in a sliding mode, the limiting spring is movably sleeved on the limiting rod, one end of the limiting spring is fixed on the inner wall of the through hole, the other end of the limiting spring is fixed on the end face of the limiting rod, and the other end of the limiting rod is inserted into the limiting hole.
Preferably, the baffle is fixedly arranged on the heat dissipation box body, the baffle divides the heat dissipation box body into a front space and a rear space, the air delivery pipe is fixedly arranged on each space of the heat dissipation box body, the electric valve is arranged on the air delivery pipe, the air delivery box body is fixed on the right side end face of the heat dissipation box body, the air outlets distributed in a row are fixedly arranged on the right side end face of the air delivery box body, the left side end face of the air delivery box body and the air delivery pipe, the temperature and humidity sensor is arranged on the inner wall of the ring main unit body, the PLC is fixedly arranged on the inner wall of the ring main unit body, the PLC is electrically connected with the temperature and humidity sensor, and the U-shaped radiating fin is inserted into the space on the front side of the heat dissipation box body.
Compared with the prior art, the utility model has the beneficial effects that: the utility model relates to a ring main unit PT voltage switching device, which is characterized in that a ring main unit body and a main unit cover are connected through bolts and nuts, a negative pressure air extractor is started, gas outside the ring main unit body enters through a radiating hole of a radiating box body, external impurities are filtered through a filter screen, a supporting frame can be limited through a limiting component, the supporting frame can slide along a sliding groove, quick disassembly and installation are realized, the filter screen is quickly replaced, the circulation rate of the gas is improved, the gas of the ring main unit body enters through the filter screen, then enters into the negative pressure air extractor through a negative pressure suction head, the function of quick heat dissipation of a voltage transformer is realized, the circulation of the gas of the ring main unit body is improved, dust is prevented from entering, moisture and temperature in the ring main unit body are detected through a temperature and humidity sensor, when the temperature reaches a set value, the circulation of the gas on a gas pipe which is not inserted into one end of a radiating box body of a U-shaped radiating fin is started, the circulation of the gas in the ring main unit body is improved, the temperature is reduced, when the humidity reaches the set value, the electric valve on the pipe on one end of the box body of the U-shaped radiating fin is started, the gas main unit enters into the ring main unit body, the ring main unit body enters into the drying cabinet through the negative pressure air extractor through a negative pressure suction head, the function of quick heat dissipation device is realized, the moisture is prevented from entering into the ring main unit body, the humidity is greatly, the humidity is caused, the environment is caused, and the humidity is greatly the environment is caused, and is safe is caused.
Drawings
Fig. 1 is a top view of the PT voltage switching device of the ring main unit of the present utility model.
Fig. 2 is a schematic structural diagram of a PT voltage switching device of a ring main unit according to the present utility model.
Fig. 3 is a front view of the negative pressure air extractor of the PT voltage switching device of the ring main unit of the present utility model.
Fig. 4 is a side view of a heat dissipation box of the PT voltage switching device of the ring main unit of the present utility model.
Fig. 5 is a schematic structural diagram of a limiting component of the PT voltage switching device of the ring main unit of the present utility model.
Fig. 6 is a side view of a support frame of the PT voltage switching device of the ring main unit of the present utility model.
In the figure: the intelligent cabinet temperature control device comprises a 1-ring main unit body, a 2-cabinet cover, a 3-negative pressure air extractor, a 4-L-shaped pipeline, a 5-negative pressure suction head, a 6-voltage transformer, 7-U-shaped radiating fins, an 8-radiating box body, a 9-sliding groove, a 10-supporting frame, 11-partition plates, 12-air delivery pipes, 13-electric valves, 14-air delivery boxes, 15-air outlets, 16-limiting assemblies, 17-radiating holes, 18-limiting holes, 19-filter screens and 20-sliding rods.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the utility model, are within the scope of the utility model based on the embodiments of the utility model.
Referring to fig. 1-6, the present utility model provides a technical solution: the intelligent power transmission device comprises a ring main unit body 1, wherein a main unit body cover 2 is connected to the ring main unit body 1 through bolts and nuts, an L-shaped pipeline 4 is fixedly communicated with an air outlet at the upper end of the main unit body cover 2, a negative pressure suction head 5 is fixedly communicated with the negative pressure suction head 3, the negative pressure suction head 5 penetrates through the main unit body cover 2 and is positioned above the right side of the ring main unit body 1, a voltage transformer 6 is connected to the upper right end bolt and nut of the inner wall of the ring main unit body 1, a U-shaped radiating fin 7 is connected to the left end bolt and nut of the voltage transformer 6, a radiating box body 8 is fixedly arranged on the left end face of the ring main unit body 1, a plurality of radiating holes 17 with the same specification are formed in the left end face of the radiating box body 8, a sliding groove 9 is fixedly arranged on the radiating box body 8, a sliding rod 20 is fixedly arranged on the sliding groove 9, a supporting frame 10 is fixedly arranged between the sliding rods 20, a limiting hole 18 is fixedly arranged on the supporting frame 10, a limiting assembly 16 is arranged on the inner wall of the ring main unit body 1, the limiting assembly 16 comprises a through hole, a filter screen 19 and a limiting spring is fixedly arranged on the other end face of the limiting spring, and is fixedly inserted into the limiting rod through hole, and is fixedly connected to one end of the limiting rod on the limiting rod;
specific: the ring main unit body and the cabinet body cover are connected through bolts and nuts, the negative pressure air extractor is started, gas outside the ring main unit body enters through the radiating holes of the radiating box body and filters external impurities through the filter screen, meanwhile, the support frame can be limited through the limiting component and can slide along the sliding groove, so that the filter screen can be quickly detached and installed, the quick replacement of the filter screen is realized, the circulation rate of the gas is improved, the gas of the ring main unit body enters through the filter screen and then enters into the negative pressure air extractor through the negative pressure suction head, the function of quickly radiating the voltage transformer is realized, the circulation of the gas of the ring main unit body is improved, and meanwhile, dust is prevented from entering;
the heat dissipation box body 8 is fixedly provided with a baffle 11, the baffle 11 divides the heat dissipation box body 8 into a front space and a rear space, each space of the heat dissipation box body 8 is fixedly provided with a gas pipe 12, each gas pipe 12 is provided with an electric valve 13, the right end face of the heat dissipation box body 8 is fixedly provided with a gas transmission box body 14, the right end face of the gas transmission box body 14 is fixedly provided with a gas outlet 15 distributed in a row, the left end face of the gas transmission box body 14 and the gas transmission pipe 12 are fixedly provided with temperature and humidity sensors, the inner wall of the ring main unit body 1 is fixedly provided with a PLC (programmable logic controller) which is electrically connected with the temperature and humidity sensors, and the U-shaped cooling fin 7 is inserted into the space in front of the heat dissipation box body 8;
specific: through humidity transducer detects internal moisture of looped netowrk cabinet and temperature, when the temperature reaches the setting value, open the electric valve on the gas-supply pipe of the radiating box cavity one end of not inserting U type fin, promote the circulation of the internal gas of looped netowrk cabinet, accelerate the cooling, when humidity reaches the setting value, open the electric valve on the gas-supply pipe of the radiating box cavity one end of inserting U type fin, realize the internal gas of entering looped netowrk cabinet and heat the drying, prevent that the gas humidity who gets into the looped netowrk cabinet body is great, cause still can lead to the voltage transformer to appear trouble such as short circuit under humid environment, promote security performance.
The working principle of the utility model is as follows: the ring main unit body and the cabinet body cover are connected through the bolts and nuts, the negative pressure air extractor is started, the outside gas of the ring main unit body enters through the radiating holes of the radiating cabinet body, and external impurities are filtered through the filter screen, the supporting frame can be limited through the limiting component, the supporting frame can slide along the sliding groove, quick disassembly and installation are achieved, quick replacement of the filter screen is achieved, the circulation rate of the gas is improved, the gas of the ring main unit body enters through the filter screen, then the negative pressure suction head enters into the negative pressure air extractor, the function of quick heat dissipation of the voltage transformer is achieved, the circulation of the gas of the ring main unit body is improved, dust is prevented from entering, moisture and temperature in the ring main unit body are detected through the temperature and humidity sensor, when the temperature reaches a set value, the electric valve on the gas pipe of the radiating cabinet body one end of the U-shaped radiating fin is opened, the electric valve on the gas pipe of the radiating cabinet body is lifted, the temperature is accelerated, when the humidity reaches the set value, the electric valve on the gas pipe of the radiating cabinet body one end of the U-shaped radiating fin is opened, the gas of the ring main unit body is heated, the gas of the ring main unit body is prevented from entering into the ring main unit body, the gas of the ring main unit body is prevented from entering into the negative pressure suction head, the gas is prevented from entering into the main unit body, the gas is prevented from causing a high humidity, and the high voltage and the humidity environment is caused, and the high voltage and the fault is safe, and the high, and the safety and the like.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (7)
1. The utility model provides a looped netowrk cabinet PT voltage switching device, includes looped netowrk cabinet body (1), be connected with cabinet body lid (2) on looped netowrk cabinet body (1) through bolt and nut, its characterized in that: the novel intelligent cabinet temperature control cabinet comprises a cabinet body cover (2), wherein an upper end face of the cabinet body cover (2) is provided with a negative pressure air extractor (3), an air outlet at the upper end of the negative pressure air extractor (3) is fixedly communicated with an L-shaped pipeline (4), a negative pressure suction head (5) is fixedly communicated with the negative pressure air extractor (3), a heat dissipation box body (8) is fixedly arranged on the left end face of the ring main unit body (1), and the heat dissipation box body (8) comprises a sliding groove (9), a supporting frame (10), a filter screen (19) and a limiting component (16).
2. The ring main unit PT voltage switching device of claim 1, wherein: the negative pressure suction head (5) penetrates through the cabinet cover (2) and is positioned above the right side of the ring main unit body (1).
3. The ring main unit PT voltage switching device of claim 2, wherein: the right end bolt and nut on the inner wall of the ring main unit body (1) is connected with a voltage transformer (6).
4. A ring main unit PT voltage switching apparatus as claimed in claim 3, wherein: the left end face bolt and nut of the voltage transformer (6) is connected with a U-shaped radiating fin (7).
5. The ring main unit PT voltage switching device of claim 4, wherein: the cooling box comprises a cooling box body (8), wherein a plurality of cooling holes (17) with the same specification are formed in the left side end face of the cooling box body (8), sliding grooves (9) are fixedly formed in the cooling box body (8), sliding rods (20) are connected to the sliding grooves (9) in a sliding mode, supporting frames (10) are fixedly arranged between the sliding rods (20), filter screens (19) are fixedly arranged on the supporting frames (10), limiting holes (18) are fixedly formed in the supporting frames (10), and limiting assemblies (16) are arranged on the cooling box body (8).
6. The ring main unit PT voltage switching device of claim 1, wherein: the limiting assembly (16) comprises a through hole, a limiting rod and a limiting spring, the through hole is fixed on the radiating box body (8), the limiting rod is connected to the through hole in a sliding mode, the limiting spring is movably sleeved on the limiting rod, one end of the limiting spring is fixed on the inner wall of the through hole, the other end of the limiting spring is fixed on the end face of the limiting rod, and the other end of the limiting rod is inserted into the limiting hole.
7. The ring main unit PT voltage switching device of claim 4, wherein: the utility model discloses a heat dissipation box, including heat dissipation box (8), baffle (11) are fixed on heat dissipation box (8), baffle (11) divide into two spaces around heat dissipation box (8), all fixedly on every space of heat dissipation box (8) be provided with gas-supply pipe (12), be provided with electric valve (13) on gas-supply pipe (12), fixed gas transmission box (14) of heat dissipation box (8) right side terminal surface, gas transmission box (14) right side terminal surface is fixed to be provided with outlet (15) of row form distribution, gas transmission box (14) left side terminal surface and gas-supply pipe (12), be provided with temperature and humidity sensor on looped netowrk cabinet (1) inner wall, fixed being provided with the PLC controller on looped netowrk cabinet (1) inner wall, PLC controller and temperature and humidity sensor electric connection, U type fin (7) insert in the space of heat dissipation box (8) front side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321126659.2U CN220325070U (en) | 2023-05-11 | 2023-05-11 | Ring main unit PT voltage switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321126659.2U CN220325070U (en) | 2023-05-11 | 2023-05-11 | Ring main unit PT voltage switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220325070U true CN220325070U (en) | 2024-01-09 |
Family
ID=89413129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321126659.2U Active CN220325070U (en) | 2023-05-11 | 2023-05-11 | Ring main unit PT voltage switching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220325070U (en) |
-
2023
- 2023-05-11 CN CN202321126659.2U patent/CN220325070U/en active Active
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