CN203894455U - Cable heating device - Google Patents

Abstract

The utility model provides an optical cable heating device, comprising: a C-shaped groove, the C-shaped groove includes an inner C-shaped wall and an outer C-shaped wall, and the inner C-shaped wall and the outer C-shaped wall are connected to form a C-shaped hollow part, the inner C-shaped wall is sheathed on the outside of the optical cable; a self-heating package, the self-heating package is placed in the C-shaped hollow part for exothermic reaction with water. The embodiment of the utility model uses the self-heating package to generate exothermic reaction when it encounters water to heat the optical cable. Compared with electric heaters or fire heaters, it improves the convenience and safety of field and underground operations. It is a general survey of temperature measurement optical cables. The instrument provides a simple, portable passive heating device.

Description

Optical cable heating device

technical field

The utility model relates to communication technology, in particular to an optical cable heating device.

Background technique

Optical cable is the main carrier of communication transmission. Due to the loss and damage of the optical cable identification plate at the laying site, the source address and destination address of the optical cable can not be correctly identified.

In the prior art, an optical cable census instrument is used to identify the optical cable. The optical cable census instrument emits laser light to the optical fiber in the optical cable, and the laser light is transmitted along the optical fiber. When the optical cable is locally heated, the Raman scattered light generated by the optical fiber in the optical cable at the heated position The intensity will increase and change with the temperature. The Raman scattering wave returns to the source address of the optical cable against the direction of the laser. At the source address of the optical cable, each optical cable is detected by the optical cable census instrument, and the Raman scattering is identified from multiple optical cables. For the optical cable with fluctuating light intensity, since the source address of the optical cable knows the destination address of each optical cable, the tester at the source address can know the destination address of the optical cable and inform the inspector at the laying site.

In the prior art, the device for heating the optical cable is an electric heater or a fire heater. Among them, the fire heating method has serious safety hazards, and the electric heating method requires a power supply, which causes great inconvenience to underground and field operations, and is easy to Damage is caused to the optical cable shell, resulting in low safety and convenience of the existing optical cable heating device.

Utility model content

The utility model provides an optical cable heating device to improve the convenience and safety of field and underground operations.

An embodiment of the utility model provides an optical cable heating device, comprising: a C-shaped groove, the C-shaped groove includes an inner C-shaped wall and an outer C-shaped wall, and the inner C-shaped wall and the outer C-shaped wall are connected to form a C A hollow part, the inner C-shaped wall is sheathed on the outside of the optical cable; a self-heating package, the self-heating package is placed in the C-shaped hollow part, for exothermic reaction with water.

In the above-mentioned optical cable heating device, preferably, the shape of the self-heating package is the same as that of the C-shaped hollow part.

The above-mentioned optical cable heating device preferably further includes a sealing cover, and the sealing cover covers the port of the C-shaped groove.

The above-mentioned optical cable heating device preferably further includes a fastening belt, and the fastening belt is sleeved on the outside of the C-shaped groove.

The optical cable heating device provided by the utility model can heat the optical cable through the exothermic reaction generated by the self-heating package when it encounters water. Compared with electric heaters or fire heaters, it improves the convenience and safety of field and underground operations. The warm optical cable census instrument provides a simple and portable passive heating device.

Description of drawings

Fig. 1 is the front view of the optical cable heating device provided by the utility model embodiment;

Fig. 2 is a cross-sectional view of an optical cable heating device provided by an embodiment of the present invention;

Fig. 3 is a topological diagram of optical cable identification using the optical cable heating device provided by the embodiment of the present invention;

Fig. 4 is a temperature curve diagram of optical cable identification using the optical cable heating device provided by the embodiment of the present invention.

Detailed ways

Fig. 1 is a front view of an optical cable heating device provided by an embodiment of the present invention. Fig. 2 is a cross-sectional view of the optical cable heating device provided by the embodiment of the present invention. As shown in Figure 1, the optical cable heating device includes a C-shaped groove 4 and a self-heating package 3; wherein, the C-shaped groove 4 includes an inner C-shaped wall and an outer C-shaped wall, and the inner C-shaped wall and the outer C-shaped wall The walls are connected to form a C-shaped hollow part, and the inner C-shaped wall is sheathed on the outside of the optical cable 1; the self-heating package 3 is placed in the C-shaped hollow part, and the self-heating package 3 is used for exothermic reaction with water.

The C-shaped groove 4 is composed of an inner C-shaped wall and an outer C-shaped wall, and at least one of the two ends of the C-shaped groove 4 is open, and the inner C-shaped wall and the outer C-shaped wall are connected to form a C-shaped hollow part, C The hollow part is the peripheral part 7 of the self-heating package 3 as shown in Fig. 2, and the inner C-shaped wall wraps the optical cable 1. The self-heating package 3 is put into the C-shaped hollow part from one port of the C-shaped groove 4, and the self-heating package 3 encounters water to produce an exothermic reaction. The self-heating package 3 can be made by wrapping an appropriate amount of quicklime with a porous non-woven fabric. When this optical cable heating device is used, open the water bag 2 as shown in Figure 1, add an appropriate amount of water on the self-heating bag 3, quicklime and water react to release heat, the heat is transferred to the optical cable 1 through the inner C-shaped wall, and the optical cable 1 is heated.

The embodiment of the utility model uses the self-heating package to generate exothermic reaction when it encounters water to heat the optical cable. Compared with electric heaters or fire heaters, it improves the convenience and safety of field and underground operations. It is a general survey of temperature measurement optical cables. The instrument provides a simple, portable passive heating device.

In the optical cable heating device provided by the embodiment of the present invention, the inner C-shaped wall is made of metal material, and the outer C-shaped wall is made of thermal insulation material. The inner C-shaped wall is made of metal, the purpose is to increase the heat conduction of the C-shaped groove 4, and the outer C-shaped wall is made of heat-insulating material, and the purpose is to reduce the heat loss of the C-shaped groove 4.

The shape of the self-heating package 3 is the same as that of the C-shaped hollow part. That is, the self-heating package 3 fills the C-shaped hollow part, and the self-heating package 3 is in full contact with the inner C-shaped wall and the outer C-shaped wall. Ensure that the optical cable 1 wrapped by the inner C-shaped wall is evenly heated.

As shown in FIG. 1 , the optical cable heating device further includes a sealing cover 5 , and the sealing cover 5 covers the port of the C-shaped groove 4 . The sealing cover 5 is used to tightly cover the port of the C-shaped groove 4 after the self-heating package 3 encounters water. If one end of the C-shaped groove 4 is open and one end is closed, then the self-heating package 3 is put into the C-shaped hollow part from the opening and water is added, and the opening is tightly covered with a sealing cover 5. If both ends of the C-shaped groove 4 are open , then the self-heating package 3 is put into the C-shaped hollow part from the opening and after adding water, the two openings are tightly covered with two sealing covers 5 to prevent the heat from being lost when the self-heating package 3 encounters water.

As shown in FIG. 1 , the optical cable heating device further includes a fastening belt 6 , which is sheathed on the outside of the C-shaped groove 4 , so that the inner C-shaped wall of the C-shaped groove 4 is in close contact with the optical cable 1 . The fastening tape 6 can be wrapped around the outside of the C-shaped groove 4 so that the C-shaped groove 4 tightly wraps the local detection section of the optical cable 1 .

In the embodiment of the utility model, the internal C-shaped wall is made of metal material, the external C-shaped wall is made of heat-insulating material, and the sealing cover increases the heat conduction of the optical cable heating device and reduces heat loss at the same time.

Fig. 3 is a topology diagram of optical cable identification using the optical cable heating device provided by the embodiment of the present invention; Fig. 4 is a temperature curve diagram of optical cable identification using the optical cable heating device provided by the embodiment of the present invention. As shown in Figure 3, two optical cable heating devices in the above-mentioned embodiments are installed on the optical cable 1. After the two optical cable heating devices heat the optical cable 1 at the same time, the optical cable census instrument located at the source address of the optical cable can be obtained as shown in Figure 4. The temperature distribution curve of the optical cable 1 shown in the figure, because the optical cable is locally heated, the temperature distribution curve shows that the temperature at the two places 1000m and 10000m away from the optical cable census instrument is both 42°C. Determine the destination address corresponding to the optical cable that generates temperature fluctuations, that is, to realize the identification of the target optical cable; at the same time, the optical cable census instrument can also locate the installation position of the optical cable heating device, that is, the optical cable heating device 1 is 1000m away from the optical cable census instrument. The heating device 2 is at a place 10000m away from the optical cable census instrument.

In the embodiment of the utility model, the length of the C-shaped groove is 10-20cm, the diameter of the inner C-shaped wall is 3-5cm, and the diameter of the outer C-shaped wall is 5-10cm. Multiple optical cable heating devices can be installed on the optical cable to be detected. In addition, multiple optical cable heating devices can also be connected in series to heat optical cables with a certain length and bending radius.

In the embodiment of the utility model, the destination address of the optical cable can be detected by the optical cable heating device, the identification of the target optical cable can be completed, and the heating position of the optical cable can be located.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand : It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the various embodiments of the present invention Scope of technical solutions.

Claims (4)

1. an optical cable heating arrangement, is characterized in that, comprising:

C type groove, described C type groove comprises inner C type wall and outside C type wall, and described inner C type wall and described outside C type wall connect and compose C type hollow space, and described inner C type wall is set in the outside of optical cable;

From heat packs, describedly from heat packs, be placed on described C type hollow space, for water generates themopositive reaction.

2. optical cable heating arrangement according to claim 1, is characterized in that, the described shape from heat packs is identical with the shape of described C type hollow space.

3. optical cable heating arrangement according to claim 2, is characterized in that, also comprises:

Gland bonnet, described gland bonnet covers on the port of described C type groove.

4. according to the optical cable heating arrangement described in claim 1-3 any one, it is characterized in that, also comprise:

Restraint zone, described restraint zone is set in the outside of described C type groove.