CN216922195U - Novel transformer substation cable tunnel ventilation system - Google Patents
Novel transformer substation cable tunnel ventilation system Download PDFInfo
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- CN216922195U CN216922195U CN202220652394.9U CN202220652394U CN216922195U CN 216922195 U CN216922195 U CN 216922195U CN 202220652394 U CN202220652394 U CN 202220652394U CN 216922195 U CN216922195 U CN 216922195U
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Abstract
The utility model provides a novel transformer substation cable tunnel ventilation system which comprises a cable tunnel, wherein an enclosure is arranged above the cable tunnel, an air inlet channel and an air exhaust channel which are communicated with the cable tunnel are further arranged, the air exhaust channel is arranged in the enclosure, the air inlet of the air inlet channel is arranged at a position comprising an indoor ground, an outdoor floor lamp or an access hole of the cable tunnel, and an air outlet of the air exhaust channel is arranged on one side of the enclosure or above the enclosure. According to the utility model, the air pressure caused by the internal and external wind forces of the cable tunnel and the hot pressing caused by the air temperature difference can be utilized, so that the air circulation mode is natural ventilation; and the air exhaust pipeline of the system is combined with the station area enclosing wall to enable the air outlet of the air exhaust pipeline to be positioned at a high position, and the air inlet pipeline is combined with the station area lamp and the like, so that the whole layout is hidden and attractive, and the occupied area is saved.
Description
Technical Field
The utility model relates to the field of cable tunnel ventilation, in particular to a novel transformer substation cable tunnel ventilation system.
Background
As the arrangement of the station area is compact, the cable tunnel of the station area is not ventilated, and the manhole of the cable tunnel is opened in advance during general maintenance to discharge harmful gas in the tunnel. Or a separate special blowing device is provided for the ventilation of the cable tunnel, but the solution has great limitations due to the limited space available in the station area.
SUMMERY OF THE UTILITY MODEL
The utility model provides a novel transformer substation cable tunnel ventilation system, which is characterized in that an air inlet and exhaust pipeline is additionally arranged on an original device, and a cable tunnel is ventilated by utilizing air pressure and heat pressure difference.
The technical means adopted by the utility model are as follows:
the utility model provides a novel transformer substation cable tunnel ventilation system, includes cable tunnel, and the cable tunnel top has the enclosure, still is provided with the inlet air channel and the passageway of airing exhaust of intercommunication cable tunnel, and the passageway of airing exhaust sets up in the enclosure, and the position that sets up of inlet air channel's air intake includes indoor ground, outdoor floor lamp or cable tunnel's access hole.
Preferably, an air inlet channel is arranged in the outdoor floor lamp, and an air inlet of the air inlet channel is arranged on an air inlet cover above the outdoor floor lamp.
Preferably, the air outlet of the air exhaust channel is arranged on one side of the enclosing wall or above the enclosing wall.
Preferably, the air outlet arranged on one side of the enclosing wall is connected with the vertical air exhaust channel arranged in the enclosing wall through an elbow, and the elbow is also internally provided with a guide vane.
Preferably, the air exhaust direction of the air exhaust opening arranged above the enclosing wall is vertically downward, and the air exhaust opening is connected with a vertical air exhaust channel arranged in the enclosing wall through a semicircular pipeline.
Compared with the prior art, the utility model has the following advantages:
the utility model does not need to add large devices such as a blower and the like, and can utilize the hot pressing caused by the wind pressure and the air temperature difference caused by the wind force inside and outside the cable tunnel to ensure that the air circulation mode is natural ventilation; and the air exhaust pipeline of the system is combined with the station area enclosing wall to enable the air outlet of the air exhaust pipeline to be positioned at a high position, and the air inlet pipeline is combined with the station area lamp and the like, so that the whole layout is hidden and attractive, and the occupied area is saved.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is an enlarged schematic view of the exhaust duct shown in fig. 1.
Fig. 3 is an enlarged schematic view of the air inlet duct shown in fig. 1.
Fig. 4 is a schematic structural diagram of a second embodiment of the present invention.
Fig. 5 is an enlarged schematic view of the exhaust duct shown in fig. 4.
Fig. 6 is an enlarged schematic view of the air inlet duct shown in fig. 4.
Wherein, 1 cable tunnel, 2 enclosures, 3 inlet air channels, 4 air intakes, 5 exhaust channels, 6 air outlets, 7 floor lamps, 8 air inlet covers, 9 elbows, 10 guide vanes, 11 semicircular pipelines, 12 access holes, 13 indoor grounds, 14 outer walls, 15 station inboards, 16 distribution device buildings, 17 fire doors, 18 bank protections.
Detailed Description
In the embodiment shown in fig. 1-6, a novel transformer substation cable tunnel ventilation system is provided, which includes a cable tunnel 1, a wall 2 is provided above the cable tunnel 1, an air intake channel 3 and an air exhaust channel 5 are further provided, the air intake channel 3 is communicated with the cable tunnel 1, the air exhaust channel 5 is disposed in the wall 2, and a position of an air intake 4 of the air intake channel 3 includes an indoor ground 13, an outdoor floor lamp 7 or a manhole 12 of the cable tunnel 1. As shown in the embodiment provided in fig. 3, when the air inlet 4 of the air inlet channel 3 is disposed on the indoor ground 13, it may be disposed on the ground of the underground floor of the power distribution unit building 16, the air inlet channel 3 is generally disposed separately to communicate with the cable tunnel 1, the air inlet 4 is generally disposed as a single-layer louvered air inlet, and a normally open fire damper is generally disposed at the communication position of the air inlet channel 3 and the cable tunnel 1; and as in the two embodiments provided in fig. 1 and 4, the duct of the manhole 12 can be used as the air intake channel 3; as shown in fig. 6, an air intake channel 3 is disposed in the outdoor floor lamp 7, and an air intake 4 of the air intake channel 3 is disposed on an air intake cover 8 (not shown) above the outdoor floor lamp 7. Thus, any one or any combination of the three air inlets 4 of the indoor ground 13, the outdoor floor lamp 7 or the access hole 12 of the cable tunnel 1 can form a set of air exhaust scheme by combining with the air exhaust channel 5 arranged on the enclosing wall 2.
And the air outlet 6 of the air outlet channel 5 is arranged at one side of the enclosing wall 2 or above the enclosing wall 2. As shown in fig. 2, the air outlet 6 disposed at one side of the enclosing wall 2 is connected to the vertical air exhaust channel 5 disposed in the enclosing wall 2 through an elbow 9, and a guide vane 10 is further disposed in the elbow 9. And a rain-proof shutter at two sides and a matched dustproof filter screen can be arranged at the air outlet 6. The top of the selected fence 2 is generally provided with a rainproof transverse plate wider than the fence. As shown in fig. 5, the exhaust direction of the exhaust outlet 6 disposed above the enclosure 2 is downward, and the exhaust outlet 6 is connected to the vertical exhaust channel 5 disposed in the enclosure 2 through a semicircular duct 11. And a dustproof and mosquito-proof filter screen is generally arranged at the air outlet 6.
The air duct that inlet air duct and air exhaust channel used in this scheme adopts the design of thickening galvanized steel sheet, and inside and outside brush reinforcement level anticorrosive paint makes the design form that air exhaust channel and station area enclosure combine make the air exit of air exhaust channel be located the high position, and the overall arrangement is hidden pleasing to the eye, effectively utilizes the wind pressure (super static pressure) that cable tunnel inside and outside wind-force caused and the principle of hot pressing (heat head) that the difference in temperature of air caused in the natural draft. The hot gas and the harmful gas in the cable tunnel are effectively discharged, and a good and safe overhaul environment is provided for operation and overhaul personnel.
Claims (5)
1. The utility model provides a novel transformer substation cable tunnel ventilation system, includes cable tunnel (1), cable tunnel (1) top has enclosure (2), its characterized in that still is provided with inlet air channel (3) and exhaust air channel (5) of intercommunication cable tunnel (1), and exhaust air channel (5) set up in enclosure (2), and the position that sets up of air intake (4) of inlet air channel (3) includes manhole (12) of indoor ground (13), outdoor floor lamp (7) or cable tunnel (1).
2. The novel transformer substation cable tunnel ventilation system of claim 1, characterized in that an air intake channel (3) is arranged in the outdoor floor lamp (7), and an air intake (4) of the air intake channel (3) is arranged on an air intake cover (8) above the outdoor floor lamp (7).
3. A novel substation cable tunnel ventilation system according to claim 1, characterized in that the exhaust outlet (6) of the exhaust channel (5) is arranged on one side of the enclosure (2) or above the enclosure (2).
4. A novel transformer substation cable tunnel ventilation system according to claim 3, characterized in that the air outlet (6) arranged at one side of the enclosure (2) is connected with the vertical air exhaust channel (5) arranged in the enclosure (2) through an elbow (9), and a guide vane (10) is further arranged in the elbow (9).
5. A novel substation cable tunnel ventilation system according to claim 3, characterized in that the air outlet (6) arranged above the enclosure (2) has an air outlet direction vertically downward, and the air outlet (6) is connected with the vertical air outlet channel (5) arranged in the enclosure (2) through a semicircular pipeline (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220652394.9U CN216922195U (en) | 2022-03-23 | 2022-03-23 | Novel transformer substation cable tunnel ventilation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220652394.9U CN216922195U (en) | 2022-03-23 | 2022-03-23 | Novel transformer substation cable tunnel ventilation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216922195U true CN216922195U (en) | 2022-07-08 |
Family
ID=82231464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220652394.9U Active CN216922195U (en) | 2022-03-23 | 2022-03-23 | Novel transformer substation cable tunnel ventilation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216922195U (en) |
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2022
- 2022-03-23 CN CN202220652394.9U patent/CN216922195U/en active Active
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