CN2221741Y - Cement pole for living wire capable of making cable tunnel ventilate - Google Patents
Cement pole for living wire capable of making cable tunnel ventilate Download PDFInfo
- Publication number
- CN2221741Y CN2221741Y CN 95233193 CN95233193U CN2221741Y CN 2221741 Y CN2221741 Y CN 2221741Y CN 95233193 CN95233193 CN 95233193 CN 95233193 U CN95233193 U CN 95233193U CN 2221741 Y CN2221741 Y CN 2221741Y
- Authority
- CN
- China
- Prior art keywords
- cable tunnel
- cement pole
- cable
- ventilation cover
- transmission line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Laying Of Electric Cables Or Lines Outside (AREA)
- Ventilation (AREA)
Abstract
The utility model relates to a cement pole for living wire capable of making cable tunnel ventilate. The utility model utilizes the cement pole of the original living wire, and a transverse elbow is connected and communicated with an air inducing opening on the side wall of a pit well of the cable tunnel and the bottom pipe of a cement pole pipe. The top end of the cement pole pipe is provided with a rain-proof ventilation cover, and as a consequence, the ventilation barrel of the cable tunnel is formed so as to solve the problems of discharge of the marsh gas and other gases in the underground cable tunnel, fire prevention and explosion prevention. The ventilation equipment improves the environment of the cable tunnel and raises the current-carrying capacity of the cable and safety.
Description
The utility model discloses a kind of transmission line cement pole that the cable tunnel is ventilated.The fire-proof and explosion-proof measure that it is applied to underground cable belongs to the affiliated facility of cable tunnel.
The laying route of the heat distribution pipeline of city underground cable, gas piping is crisscross, and the ventilated situation in these tunnels is very poor.Especially mine pit inner product in cable tunnel has sewage, fallen leaves withered grass, is easy to produce biogas; Leakage gas and steam when being arranged again, town gas and heat distribution pipeline are arranged.The gas of these leakages escapes in the underground cable tunnel through regular meeting and goes; Adding in the multi-channel power transmission that heat radiation is poly-to be increased, causing in the tunnel temperature too high, causing fire or blast.Existing cable tunnel does not all have ventilation equipment, and existing transmission line cement pole, but just is embedded in undergroundly, only uses as transmission overhead line.
The purpose of this utility model is that a kind of explosion-proof transmission line cement pole of cable tunnel ventilating fire prevention that makes will be provided.This bar is simple in structure, dual-use material.
Task of the present utility model is that following technical scheme is finished: the transmission line cement pole that designed made cable tunnel ventilates, it is installed in underground cable mine pit next door, (can utilize the former underground transmission circuit cement pole that is arranged on).This equipment mainly is: on a sidewall of cable mine pit an air-vent is set, outwards lays a horizontal logical bend pipe by this mouth, connect the hollow bottom tube mouth of pipe place of the empty frame transmission line cement pole in being embedded in ground again.The hollow steel bar cement rod tube of this cement pole for connecting.
The air-vent that these ventilation equipment are designed, it is arranged on the sidewall middle and lower part of cable mine pit, and its bore longitudinal section is trapezoidal, and the Qi Kou edge is a little more than the mine pit bottom surface, in order to avoid muddy water stops up air-vent.
The hollow air hardening steel muscle cement rod tube that these ventilation equipment are designed, its top is except that being provided with power transmission facilities such as stringing porcelain vase crossbeam, and its top end can be provided with the rainproof ventilation cover.This rainproof ventilation cover, the rainproof ventilation cover that it can be fixed on the circular cone top shape for hat on Hollow cement pile pipe top also can be the rainproof ventilation cover of flat-top porcelain vase guard type.
The empty frame transmission line cement rod tube that these ventilation equipment are designed, it is embedded in the degree of depth in the ground at 1.0～1.5m, and its height that is above the ground level is advisable at 5～15m.
Embodiment of the present utility model further describes it in conjunction with the accompanying drawings.
Fig. 1 is the ventilation equipment scheme of installation (the rainproof ventilation cover of band circular cone top cap) of cable tunnel.Have among Fig. 1: cable mine pit 1, cable 2, air-vent 3, horizontal logical bend pipe 4, the hollow bottom tube mouth of pipe 5, hollow steel bar cement rod tube 6, the rainproof ventilation cover 7 of circular cone top shape for hat, pavement 9, traffic road surface 10.
Fig. 2 is the ventilation equipment scheme of installation (the rainproof ventilation cover of band flat-top porcelain vase guard) of cable tunnel.Have among Fig. 2: cable mine pit 1, cable 2, air-vent 3, horizontal logical bend pipe 4, hollow bottom tube side mouth 5 ', hollow steel bar cement rod tube 6, the rainproof ventilation cover 7 of flat-top porcelain vase guard type ', stringing porcelain vase crossbeam 8, pavement 9, traffic road surface 10.
As shown in Figure 1: the ventilator of the isometrical reinforced concrete rod tube 6 of nominal footpath φ 300 * 6000mm as cable mine pit 1 is set at 9 inboard 0.5m places, cable mine pit 1 other people trade.The horizontal logical bend pipe 4 of cast iron that one nominal footpath φ 300mm is set in the sidewall middle and lower part of cable mine pit 1 is connected the hollow bottom tube mouth of pipe 5 in trumpet type air-vent 3 and cement rod tube, squeegees with cement and pulls out the gas effect with the good ventilation that guarantees the cement rod tube.The top of cement rod tube is provided with circular cone top shape for hat rainproof ventilation cover 7 can guarantee to pull out that gas is unimpeded scatters, thereby guarantees that the cable tunnel does not accumulate combustion gas such as biogas, reduces the temperature of cable tunnel.
As shown in Figure 2: utilize the general 10～12m of original empty frame transmission line cement pole, masthead opened, be fixed with again the rainproof ventilation cover 7 of flat-top porcelain vase guard type '.This cement rod tube 6, except keeping original stringing porcelain vase crossbeam 8, utilize again its hollow in the side mouth 5 of pipe, connect air-vent 3 on cable mine pit sidewall by horizontal logical bend pipe 4, thereby constitute the ventilation equipment of cable tunnel.All can utilize original empty frame transmission line cement pole to transform a little on the way at the defeated line of cable, can constitute the ventilation equipment of cable tunnel.So not only solved the ventilating problem of cable tunnel but also economical and practical, and made full use of existing facility and accomplish dual-use material.
The ventilation equipment of this cable tunnel have improved the ventilated environment of cable tunnel, have reduced the temperature in the cable tunnel, but in time get rid of flammable explosive gas, guarantee the safety of cable operation current-carrying, not influencing traffic again, do not increase ground installation again, is a kind of good ventilation equipment.
Claims (3)
1, a kind of transmission line cement pole that the cable tunnel is ventilated, it is provided with stringing porcelain vase crossbeam on the hollow steel bar cement pole, it is characterized in that: connecting at this hollow rod tube lower nozzle place has a horizontal logical bend pipe, as the air-vent pipe, this rod tube top also can be provided with the rainproof ventilation cover.
2, according to the described transmission line cement pole that the cable tunnel is ventilated of claim 1, it is characterized in that: described lower nozzle, it can be located at lower bottom end mouth of pipe place, also can be located at lower tube sidewall appropriate position.
3, according to claim 1 or the 2 described transmission line cement poles that the cable tunnel is ventilated, it is characterized in that: described rainproof ventilation cover can be the rainproof ventilation cover that is fixed on the circular cone top shape for hat on this rod tube top, also can be the rainproof ventilation cover of flat-top porcelain vase guard type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95233193 CN2221741Y (en) | 1995-02-11 | 1995-02-11 | Cement pole for living wire capable of making cable tunnel ventilate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95233193 CN2221741Y (en) | 1995-02-11 | 1995-02-11 | Cement pole for living wire capable of making cable tunnel ventilate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2221741Y true CN2221741Y (en) | 1996-03-06 |
Family
ID=33877380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95233193 Expired - Fee Related CN2221741Y (en) | 1995-02-11 | 1995-02-11 | Cement pole for living wire capable of making cable tunnel ventilate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2221741Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103414276A (en) * | 2013-08-15 | 2013-11-27 | 北京国润通达科技有限公司 | Underground waterproof communication device cabin |
| CN109066560A (en) * | 2018-08-29 | 2018-12-21 | 国网山东省电力公司烟台供电公司 | A kind of upper boom cable external force damage prevention cement tub |
-
1995
- 1995-02-11 CN CN 95233193 patent/CN2221741Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103414276A (en) * | 2013-08-15 | 2013-11-27 | 北京国润通达科技有限公司 | Underground waterproof communication device cabin |
| CN109066560A (en) * | 2018-08-29 | 2018-12-21 | 国网山东省电力公司烟台供电公司 | A kind of upper boom cable external force damage prevention cement tub |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |