JPH0224462A - Method for planting snow-melting support wire - Google Patents

Abstract

PURPOSE:To make smooth insertion and burying possible by fitting an insert guide jig, having smooth spherical head, to the tip of a heat-pipe-affixed or a heat-pipe-incorporated support wire, and by thrusting the said jig into an insert hole with a pushing jig. CONSTITUTION:To the tip of a heat-pipe-incorporated support wire 2, a guide jig 4 is fitted by force fitting. The heed 4a of the guide jig 4 is formed in smooth spherical shape. A pushing jig 5, made in a slivered-pipe shape, is fitted to the rear end face of the jig 4, and is guided and inserted into an insert hole 11 and is buried underground. Snow around the support wire is melted by drawing up of geotherm with the heat pipe 10. By the above-mentioned method, insertion and burying of the heat pipe can be made with a smallest hole possible.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is directed to a snow-melting type branch line heating system in which heat pipes are installed in parallel to a branch line that supports structures such as utility poles to melt snow around the branch line. This relates to a method of burying a pipe portion.

[Prior Art] As shown in FIG. 1, a long erected structure such as a utility pole 1 is usually provided with a branch line 2 to prevent the structure from collapsing.

When there is a large amount of snow in a snowy region, the snow becomes compacted around the branch line 2 due to the large snow load, and a large downward settling force is generated. This sinking force was larger than expected, and the power pole 1 was moved to #]'! Diagonal or branch line 2
It may even break or bend.

Therefore, whenever there is a large amount of snow, workers remove snow around the branch line to prevent accidents caused by the settling force, but this requires a lot of effort.

In order to eliminate the effect of the snow settling force mentioned above, it is not necessary to remove all the snow around the branch line 2. If you melt only the snow around the area and cut off the connection between the branch line 2 and the snow, you can achieve the purpose. can be achieved.

Based on the above knowledge, Figure 1 shows the mounting bracket 3 around the branch line 2.
．． 3 with a heat pipe 10 attached,
This heat pipe 10 melts the snow around the branch line 2, breaks the contact connection between the snow and the branch line 2, and prevents the sedimentation force from reaching the branch line 2.

The operation of such a heat pipe 10 will be explained with reference to FIG. 9.

The heat pipe 10 consists of a pipe-shaped sealed container, and a working fluid made of fluorocarbon 114 or the like that can evaporate and condense is sealed inside.The heat collecting part 10a on one side is buried underground, while the heat dissipating part 10b is placed on the ground.

The working liquid absorbs geothermal heat in the heat collecting part 10a and evaporates, and the vapor moves to the heat radiating part 10b, where it condenses into liquid, returns to the heat collecting part 10a, and evaporates again.This heat radiating part 10b During the condensation of the steam, heat is released and melts the surrounding snow 20.

The heat nozzle 10 installed for this purpose is constructed separately from the branch line 2 as shown in FIG.
However, as shown in Fig. 2 (a), a heat nozzle 10 may be placed on the 6th part of the stranded wire, and a wire such as aluminum-coated steel wire or galvanized steel wire may be placed around the outer periphery. If the high tensile strength wires 2a, 2a are twisted together to form a branch line 2 with a built-in heat pipe as shown in FIG. The applicant has a separate proposal for this structure, which is desirable from the standpoint of thermal efficiency for snow melting.

[Problem to be Solved by the Invention 1] Regardless of whether the heat pipe is an attached type as shown in FIG. 1 or a built-in type as shown in FIG. In order to melt snow, a long piece of about 5 to 10 m is required, and the buried depth d for forming the heat collecting portion 10a shown in FIG. 7 is also required to be 3 m or more. Moreover, the smaller the diameter of the insertion hole 11 in this case, the lower the cost, the less soil destruction, and the advantageous from the perspective of geothermal utilization.

However, it is difficult to transport the elongated and flexible heat pipe 10 or heat pipe built-in branch line 2 in a straight line, and it is common to carry them to the site in bundles.

In order to insert and bury such bundled products into the insertion hole 11 as shown in FIG. Q is difficult to remove and insert, and the tip often contacts or pierces the wall of the insertion hole, destroying the insertion hole and making insertion difficult. To avoid this, it is necessary to make the hole diameter unnecessarily large, but this inevitably increases cost and labor, and it is also undesirable from the standpoint of geothermal utilization because it destroys the soil.

An object of the present invention is to solve the problems of the prior art as described above, and to provide a burying method that allows a flexible long heat pipe or a gX type branch line within a heat pipe to be smoothly inserted and buried underground. This is what I am trying to do.

[Means for Solving the Problems] The present invention provides a method for inserting and burying a heat pipe attached to a branch line or a branch line incorporating the heat pipe into an insertion hole, by attaching a guide jig to the tip of the embedding, The guide jig is pushed in by a separate rod-shaped or pipe-shaped pushing jig.

[Function] Because heat pipes are long and flexible bodies, it is difficult to insert them into the insertion hole, but a guide jig with a smooth end face is attached to the tip and this is pushed in with a regular pushing jig. If pushed in, the heat pipe or the like will be guided by the guide jig and pulled in, making it easy to bury it underground.

[Example] The present invention will be described below with reference to the drawings.

FIG. 3 is a cross-sectional view showing two specific examples in which the guide jig 4 is not attached to the tip of the branch line 2 with a built-in heat pipe shown in FIG. Each guide jig 4 is attached in a matching manner.

The head 4a of each guide jig 4 is formed into a smooth curved shape, and is shaped so that it can be inserted more smoothly into the insertion hole 11 shown in FIG. 4 than the head 4a.

The material of the guide jig 4 is desirably high in rigidity, such as metal such as steel or aluminum, or plastic, and must have a length that allows it to be smoothly inserted into the insertion hole 11.

In order to insert such a guide jig 4 into the insertion hole 11, as shown in FIG. Place it in contact with the rear end face and push it in as shown by the arrow.

As the guide jig 4 is pushed in by the pushing jig 5,
The heat pipe built-in branch line 2 is guided and inserted into the insertion hole 11 with a small hole diameter, and even if it is a flexible and long branch line 2, it can be easily buried underground, and the heat pipe can pump geothermal heat. Heat radiation and the resulting snow melting can be performed.

Note that FIG. 6 shows a modification in which the tip end 5a of the pushing jig 5 is not cut in half but is formed into a pipe shape, which can prevent the tip from coming off during pushing.

Further, FIG. 8 shows an example in which a rod-shaped rigid body is used as the pushing jig 5. If it is rod-shaped, it has the advantage of being smaller in diameter than a pipe.

After the guide jig 4 has been pushed in as described above, the pushing jig 5 may be buried as it is or may be pulled out, which may be selected as appropriate.

In the above embodiment, the burying of the branch line 2 with a built-in heat pipe shown in FIG. There is nothing that has really changed.

[Effects of the Invention] As described above, by using the burying method according to the present invention, the long flexible branch line with a built-in heat pipe or the heat pipe itself attached to the branch line can be made unnecessarily large as in the past. It can be inserted and buried extremely smoothly in the minimum required hole without drilling an insertion hole, and it has great significance as it can improve practicality and contribute to the future contravention of snow-melting type branch lines. be.

[Brief explanation of the drawing]

Figure 1 is an explanatory diagram showing how a heat pipe is attached to a branch line, and Figure 2 shows the configuration of a branch line with a built-in heat pipe, where (a) is a cross-sectional view and (b) is a partial sketch. , Figures 3 (a) and (b) are cross-sectional views showing two types of guide jigs attached to the ends, Figure 4 is an explanatory view showing how the guide jigs are used to embed the material, and Figure 5 The figure is an explanatory drawing showing the embedding situation, Fig. 6 is an explanatory sketch showing a modified example of the pushing jig, Fig. 7 is an explanatory drawing showing the conventional burying situation, and Fig. 8 is an explanatory drawing showing a modification of the pushing jig. FIG. 9 is an explanatory diagram showing the buried state, and FIG. 9 is an explanatory diagram showing the snow melting operation of the heat pipe. 2: Branch wire, 2a: High tensile strength strand, 4 Ni guide anchor, 5: Pushing jig, 10: Heat pipe, 11: Insertion buried hole. Figure 1 Figure 2 (A) Figure 3 Figure 8 Figure 5 Figure 7 Figure 6

Claims (1)

[Claims] (1) Attach an insertion guide jig with a smooth surface to the tip of the heat pipe attached to the branch line or the branch line with a built-in heat pipe, and insert the guide jig into another rod-shaped or pipe-shaped pushing jig. A method for burying a snow-melting type branch line, in which the heat pipe or a branch line with a built-in heat pipe is guided and buried by pushing the heat pipe or a heat pipe built-in branch line into an insertion hole.