KR101504128B1 - Anti fire provision for cable in underground power tunnel - Google Patents

Abstract

Provided is an anti-fire provision for a cable in an underground power tunnel. An anti-fire provision for a cable in an underground power tunnel includes a wire fixing frame (100) of multi layers; a first wire protection case (200) which is fixed to the wire fixing frame (100), has a first through hole (201) which a wire (1) penetrates, has a first protection pipe (210) which can be inserted into one end and protrudes, and has a first insertion groove (220) formed in the other end; a second wire protection case (300) which is fixed to the wire fixing frame (100) to be located between the first wire protection cases (200), has a second through hole (301) which a wire (1) penetrates, has a second protection pipe (310) which can be inserted into one end and protrudes, has a second insertion groove (320) formed in the other end; and an anti-fire safety module (400) which controls the first protection pipe (210) to protrude to be inserted into the second insertion groove (320) and controls the second protection pipe (310) to protrude to be inserted into the first insertion groove (220) when the ambient temperature of the first wire protection cases (200) and the second wire protection cases (300) is higher than a predetermined reference temperature.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a cable fire-

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an electric cable fire preventing apparatus in an underground electric power facility, and more particularly, to an electric cable fire preventing apparatus in an underground electric power facility which can prevent an accident such as a short circuit of electric wires in the event of a fire.

Generally, in Korea, many underground burials buried underground such as communication cables, power lines, gas pipes, and waterworks are buried differently, and there are many problems such as civil complaints caused by frequent excavation and wasted construction costs due to the unification of management institutions have.

In order to integrate many underground facilities such as communication cables, power lines, gas pipes, and waterworks into one underground, or to buried them separately, a common area, a power area, and a communication area are required.

When the culvert is used as a culvert, a power station, a communication center, etc., the culvert is provided with structures such as a check port, a ventilator, and a sleeve.

In order to install the inspection port in the existing culvert, the culvert unit was made so that the reinforcing bars were exposed at the part where the inspection port was to be installed, and the concrete was installed by installing a mold for forming the inspection port.

However, the method of casting the concrete through the exposure of the reinforcing bar increases the construction cost due to the increase of the construction period due to the concrete hardening period, and there is a problem of complaints caused by the long - term construction and quality control of the integrated product with the existing product.

On the other hand, in order to fix the ducts and wires installed inside the culvert, angles should be installed inside the culvert. However, when the anchor bolt for the angle installation is drilled, the culvert wall is completely penetrated, There is a problem that maintenance of watertightness and installation are time-consuming.

A prior art related to the present invention is Korean Patent No. 10-08577730000 (Sep. 3, 2008).

SUMMARY OF THE INVENTION An object of the present invention is to provide an underground power cable cable fire preventing apparatus which can prevent an accident such as a short circuit of a cable when a fire occurs.

In a preferred aspect, the present invention provides an underground power cable wire cable fire fighting apparatus.

The underground electric power cable wire fireproofing apparatus includes a wire fixing frame (100) having a multi-stage structure; A first through hole 201 through which the electric wire 1 passes, a first protection pipe 210 inserted and protruded at one end thereof and a second protection pipe 210 formed at the other end thereof, A plurality of first wire protecting cases 200 on which the insertion grooves 220 are formed; A second through hole 301 fixed to the wire fixing frame 100 so as to be positioned between the plurality of first wire protecting cases 200 and through which the electric wire 1 passes is formed, A plurality of second wire protecting cases 300 in which a second protective tube 310 capable of being protruded is formed and a second insertion groove 320 is formed at the other end; And when the ambient temperature of the plurality of first wire protection case (200) and the plurality of second wire protection case (300) is equal to or higher than a predetermined reference temperature, the first protection pipe (210) And an ignition safety module 400 for inserting the second protection tube 310 into the first insertion groove 220 and inserting the second protection tube 310 into the insertion groove 320.

In the first through hole 201, a first tube 610 through which the electric wire 1 is inserted is provided,

In the second through hole (301), a second tube (620) into which the electric wire (1) is inserted is provided,

The plurality of first wire protecting cases 200 and the plurality of second wire protecting cases 300 may be disposed between the plurality of first wire protecting cases 200 and the plurality of second wire protecting cases 300, A third tube 630 into which the electric wire 1 passing through the first tube 630 is inserted,

(Not shown) is formed on the outer surface and inner surface of the first tube 610, the second tube 620, and the second tube 620.

The fire safety module 400 includes a first linear motor 410 installed in the plurality of first wire protecting cases 200 for inserting and projecting the first protective pipe 210, A second linear motor 420 installed in the wire protection case 300 for inserting and projecting the second protection pipe 310 and a second linear motor 420 for inserting and projecting the second protection pipe 310, A plurality of temperature sensors 430 installed in the case 300 for measuring a temperature and a temperature sensor 430 for measuring a temperature of the first linear motor 410 and the second linear motor 420, The first protection pipe 210 is protruded to fit into the second insertion groove 320 and the second protection pipe 310 is protruded to be inserted into the first insertion groove 220. [ And a controller 440 for controlling the controller 440.

The plurality of first wire protecting cases 200 and the plurality of second wire protecting cases 300 are hermetically sealed,

The plurality of first wire protecting cases 200 and the plurality of second wire protecting cases 300 are connected to the vacuum line 510,

The vacuum line 510 receives a vacuum from the vacuum generator 500 and forms a vacuum state inside the plurality of first wire protecting cases 200 and the plurality of second wire protecting cases 300 do.

The controller 440 drives the vacuum generator 500 if the measured temperature is equal to or higher than the predetermined reference temperature.

The electric wire fixing frame is provided with a cooling water flow path through which cooling water is circulated, the cooling water flow path is connected to a cooling water supply section, and the cooling water supply section is driven by a control signal from the controller, Circulates through the flow path.

INDUSTRIAL APPLICABILITY The present invention has an effect of preventing an accident such as a short circuit of a wire when a fire occurs.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing an electric wire cable fire fighting apparatus in an underground power line of the present invention. FIG.
FIG. 2 is a view showing the state of the first and second wire protection cases before a fire occurs. FIG.
3 is a view showing the state of the first and second wire protecting cases after a fire has occurred.
4 is a view showing the arrangement of the first, second and third tubes according to the present invention.
5 is a view showing a state in which a vacuum generator is connected.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an underground power cable cable fire preventing apparatus according to the present invention will be described with reference to the accompanying drawings.

2 is a view showing a state of the first and second wire protecting cases before a fire occurs, and FIG. 3 is a view showing a state where the first and second wires are protected FIG. 4 is a view showing the arrangement of the first, second and third tubes according to the present invention, and FIG. 5 is a view showing a connected state of the vacuum generator.

1 to 3, an underground power cable cable fire preventing apparatus according to the present invention includes a wire fixing frame 100 having a multi-stage structure; A first through hole 201 through which the electric wire 1 passes, a first protection pipe 210 inserted and protruded at one end thereof and a second protection pipe 210 formed at the other end thereof, A plurality of first wire protecting cases 200 on which the insertion grooves 220 are formed; A second through hole 301 fixed to the wire fixing frame 100 so as to be positioned between the plurality of first wire protecting cases 200 and through which the electric wire 1 passes is formed, A plurality of second wire protecting cases 300 in which a second protective tube 310 capable of being protruded is formed and a second insertion groove 320 is formed at the other end; And when the ambient temperature of the plurality of first wire protection case (200) and the plurality of second wire protection case (300) is equal to or higher than a predetermined reference temperature, the first protection pipe (210) And an ignition safety module 400 for inserting the second protection tube 310 into the first insertion groove 220 and inserting the second protection tube 310 into the insertion groove 320.

In the first through hole 201, a first tube 610 through which the electric wire 1 is inserted is provided.

In the second through hole 301, a second tube 620 through which the electric wire 1 is inserted is provided.

The plurality of first wire protecting cases 200 and the plurality of second wire protecting cases 300 may be disposed between the plurality of first wire protecting cases 200 and the plurality of second wire protecting cases 300, And a third tube 630 through which the electric wire 1 passing through the first tube 630 is inserted.

(Not shown) is formed on the outer surface and the inner surface of the first tube 610, the second tube 620, and the second tube 630.

The fire safety module 400 includes a first linear motor 410 installed in the plurality of first wire protecting cases 200 for inserting and projecting the first protective pipe 210, A second linear motor 420 installed in the wire protection case 300 for inserting and projecting the second protection pipe 310 and a second linear motor 420 for inserting and projecting the second protection pipe 310, A plurality of temperature sensors 430 installed in the case 300 for measuring a temperature and a temperature sensor 430 for measuring a temperature of the first linear motor 410 and the second linear motor 420, The first protection pipe 210 is protruded to fit into the second insertion groove 320 and the second protection pipe 310 is protruded to be inserted into the first insertion groove 220. [ And a controller 440 for controlling the controller 440.

Accordingly, referring to FIG. 3, when a fire occurs, the electric wire 1 can be protected from the outside by the first and second protective pipes 210 and 310.

Referring to FIG. 5, the plurality of first wire protecting cases 200 and the plurality of second wire protecting cases 300 are sealed.

The plurality of first wire protecting cases 200 and the plurality of second wire protecting cases 300 are connected to the vacuum line 510.

The vacuum line 510 receives a vacuum from the vacuum generator 500 and forms a vacuum state inside the plurality of first wire protecting cases 200 and the plurality of second wire protecting cases 300 do.

3, when the measured temperature is equal to or higher than the predetermined reference temperature, the controller 440 inserts the first and second protective tubes into the second and first insertion grooves, And drives the generator 500.

Accordingly, the temperature of the outside of the first and second wire protecting cases 200 and 300 is lowered to the inside of the first and second wire protecting cases 200 and 300 where the wire 1 is located, .

Although not shown in the drawing, the electric wire fixing frame 100 is provided with a cooling water channel through which cooling water is circulated, the cooling water channel is connected to a cooling water supply unit, and the cooling water supply unit receives a control signal from the controller So that the cooling water having the set cooling temperature can be circulated through the cooling water flow path.

Therefore, the wire fixing frame 100 can always maintain the Neil positive cooling temperature, so that the first and second wire protecting cases can be cooled.

As described above, according to the embodiment of the present invention, it is apparent that various modifications can be made without departing from the scope of the present invention.

Therefore, the scope of the present invention should not be limited to the above-described embodiments, but should be determined by the scope of the appended claims and equivalents thereof.

It is to be understood that the foregoing embodiments are illustrative and not restrictive in all respects and that the scope of the present invention is indicated by the appended claims rather than the foregoing description, It is intended that all changes and modifications derived from the equivalent concept be included within the scope of the present invention.

1: Wires
100: wire fixing frame
200: First wire protection case
300: Second wire protection case
400: Fire safety module
500: Vacuum generator

Claims (5)

A plurality of wire fixing frames;
A plurality of first wire protection cases fixed to the wire fixing frame and having a first through hole through which a wire penetrates, a first protection tube inserted and protruded at one end, and a first insertion groove formed at the other end, ;
A second through-hole through which the electric wire penetrates, a second protection pipe inserted and protruded at one end thereof, and a second protection pipe formed at the other end of the second protection pipe so as to be positioned between the plurality of first electric wire- A plurality of second wire protecting cases in which two insertion grooves are formed; And
The first protection tube is inserted into the second insertion groove to protrude when the ambient temperature of the plurality of first wire protection case and the plurality of second wire protection case is equal to or higher than a preset reference temperature, And a fire safety module for protruding the protection pipe so as to be inserted into the first insertion groove.
The method according to claim 1,
Wherein the first through-hole is provided with a first tube in which the electric wire is inserted,
A second tube in which the electric wire is inserted is provided in the second through hole,
A plurality of first wire protecting cases and a third tube having a plurality of second wire protecting cases are inserted between the plurality of first wire protecting cases and the plurality of second wire protecting cases, Respectively,
Wherein the first tube, the second tube, and the second tube have a multi-layered fireproof coating layer on the outer and inner surfaces of the first tube, the second tube, and the second tube.
The method according to claim 1,
The fire safety module comprises:
A first linear motor installed in the plurality of first wire protecting cases for inserting and projecting the first protecting tube,
A second linear motor installed in the plurality of second wire protecting cases for inserting and projecting the second protecting tube,
A plurality of temperature sensors installed in the plurality of first wire protecting cases and the plurality of second wire protecting cases for measuring the temperature,
Driving the first linear motor and the second linear motor to protrude the first protective tube and fit the second insertion groove into the second insertion groove when the measured temperature is equal to or higher than the predetermined reference temperature, So as to sandwich the first insertion groove in the first insertion groove.
Claim 4 has been abandoned due to the setting registration fee. The method of claim 3,
The plurality of first wire protecting cases and the plurality of second wire protecting cases are hermetically sealed,
Each of the plurality of first wire protecting cases and the plurality of second wire protecting cases is connected to a vacuum line,
Wherein the vacuum line is provided with a vacuum from a vacuum generator to form the plurality of first wire protection cases and the plurality of second wire protection cases in a vacuum state,
Wherein the controller drives the vacuum generator when the measured temperature is equal to or higher than the predetermined reference temperature.
Claim 5 has been abandoned due to the setting registration fee. The method of claim 3,
In the wire fixing frame,
A cooling water passage through which the cooling water is circulated is formed,
The cooling water channel is connected to the cooling water supply unit,
Wherein the cooling water supply unit is driven in response to a control signal from the controller to circulate cooling water having a predetermined cooling temperature through the cooling water flow path.

Images